WO2014157583A1

WO2014157583A1 - Polar-group-containing olefin copolymer, multinary polar-group-containing olefin copolymer, olefin-based resin composition, and adhesive and layered product comprising same

Info

Publication number: WO2014157583A1
Application number: PCT/JP2014/059031
Authority: WO
Inventors: 正弘上松; 一成阿部; 清水　浩之; 森岡　哲哉
Original assignee: 日本ポリエチレン株式会社; 日本ポリプロ株式会社
Priority date: 2013-03-27
Filing date: 2014-03-27
Publication date: 2014-10-02
Also published as: EP2980107B1; EP2980107A4; CN105102492B; US20190092985A1; EP2980107A1; US11084957B2; CN105102492A; US20160046842A1

Abstract

A polar-group-containing olefin copolymer which comprises 99.999-80 mol% structural units derived from ethylene and/or a C_3-20 α-olefin and 20-0.001 mol% structural units derived from at least one polar-group-containing monomer that contains an epoxy group and is represented by structural formula (I) or (II). The polar-group-containing olefin copolymer is obtained by copolymerization in the presence of a transition metal catalyst, has a linear molecular structure, and is a random copolymer.

Description

Polar group-containing olefin copolymer, multi-component polar group-containing olefin copolymer, olefin-based resin composition, and adhesive and laminate using the same

The present invention relates to a polar group-containing olefin copolymer having excellent physical properties, a multi-component polar olefin copolymer, an olefin resin composition containing a polar group-containing olefin copolymer and an olefin resin, and using them. More specifically, the present invention relates to laminates and various composite products. More specifically, polar group-containing olefin copolymers and multi-component polar olefin copolymers containing specific polar groups and having excellent adhesion performance to various base materials. The present invention relates to an olefin resin composition containing a polar group-containing olefin copolymer and an olefin resin, and an adhesive and a laminate using the performance.

In general, olefin-based resins have high mechanical strength, excellent impact resistance, long-term durability, chemical resistance, corrosion resistance, etc., are inexpensive, have excellent moldability, and are compatible with environmental issues and resource reusability. Therefore, it is used as an industrial material, and is formed into a film, a laminate, a container, a blow bottle, etc. by, for example, injection molding, extrusion molding, blow molding, etc., and used for a wide range of applications. Furthermore, by laminating with a base material such as a gas barrier material such as ethylene-vinyl alcohol copolymer (EVOH) or aluminum foil, in addition to the above properties, properties such as gas barrier properties can be added. High-performance packaging materials and containers can be obtained.

However, olefin polymers are generally non-polar, and when used in laminated materials, they have the disadvantage that their adhesive strength to other highly polar dissimilar materials such as synthetic resins, metals and wood is extremely low or not bonded There is.

Therefore, in order to improve the adhesion with different polar materials, a method of grafting a polar group-containing monomer using an organic peroxide has been widely performed (for example, see Patent Document 1).
However, in this method, intermolecular cross-linking between olefin resins and molecular chain scission of olefin resins occur in parallel with the grafting reaction, so that the excellent physical properties of the olefin resin are not maintained in the graft modified product. The problem occurs. For example, unnecessary long chain branching is introduced by intermolecular crosslinking, resulting in an increase in melt viscosity and broadening of the molecular weight distribution, which adversely affects adhesiveness and moldability. Further, the increase in the low molecular weight component of the olefinic resin due to the molecular chain breakage presents the problem that eyes and smoke are generated during the molding process.

Furthermore, by increasing the polar group content in the polar group-containing olefin copolymer, it is possible to increase the adhesion with different polar materials, but a large amount of polar group-containing monomer is grafted onto the olefin resin by graft modification. It is not easy to do. As a method for increasing the content of the polar group-containing monomer, for example, a method for increasing the amount of the polar group-containing monomer used for graft modification and the amount of the organic peroxide can be considered. When this method is used, it leads to further intermolecular crosslinking and molecular chain breakage of the olefin resin, and various physical properties such as mechanical properties, impact resistance, long-term durability, and moldability are impaired. In addition, the amount of unreacted polar group-containing monomers and organic peroxide decomposition products remaining in the olefin resin increases, leading to an accelerated deterioration of the olefin resin and an unpleasant odor. appear. Therefore, there has been a limit to increase the content of the polar group-containing monomer in the olefin resin.

By the way, as a means of incorporating polar group-containing monomers into olefinic resins without causing intermolecular crosslinking or gelation and molecular chain scission between olefinic resins, high pressure radical polymerization is used to polarize ethylene and polar groups. A method of copolymerizing a group-containing monomer to obtain a polar group-containing olefin copolymer is also disclosed (see Patent Documents 2 to 4). In addition, although the molecular structure example of the polar group containing olefin copolymer which introduce | transduced the polar group using the high pressure radical polymerization process is shown in FIG. 1, the problem generate | occur | produced by graft modification is solved according to this method, It is possible to increase the content of the polar group-containing monomer in the polar group-containing olefin copolymer as compared with graft modification. However, since the polymerization process is a high-pressure radical method, the obtained polar group-containing olefin copolymer has a molecular structure having many long-chain branches and short-chain branches irregularly. For this reason, only a polar group-containing olefin copolymer having a low elastic modulus and low mechanical properties is obtained as compared with a polar group-containing olefin copolymer polymerized using a transition metal catalyst, and high strength is required. The range of application to the use is limited.

On the other hand, when a conventional metallocene catalyst is used to copolymerize ethylene and a polar group-containing monomer, it has been said that catalytic polymerization activity is reduced and polymerization is difficult. A method of polymerizing a polar group-containing olefin copolymer in the presence of a catalyst coordinated to a transition metal has been proposed (see Patent Documents 5 to 8). According to these methods, although it has a high elastic modulus and mechanical strength compared with the polar group-containing olefin copolymer obtained by the high-pressure radical process, it is possible to increase the polar group content. Image diagrams of the molecular structure of the polar group-containing olefin copolymer polymerized using a catalyst are shown in FIGS. 2 and 3. The methods described in these documents mainly contain acrylate groups such as methyl acrylate and ethyl acrylate. The main focus is on monomers and copolymers of ethylene or α-olefins with specific polar group-containing monomers such as vinyl acetate. Polar group-containing olefin copolymers having these functional groups The adhesion of is not enough. In addition, specific adhesion performance with different polar materials is not mentioned, and use as a specific polar group-containing olefin copolymer for the purpose of adhesion performance is not disclosed.

On the other hand, an epoxy group is generally known as a polar group capable of exhibiting excellent adhesiveness with a heterogeneous material having a high polarity. However, in an ordinary catalytic polymerization method, an epoxy group-containing comonomer is copolymerized. At present, polar olefin copolymers containing epoxy groups that are commercially available mainly are produced by a high-pressure radical polymerization process.
In addition, as an example of the polar group-containing olefin copolymer polymerized without using the high-pressure radical polymerization process, a so-called masking method called a specific metallocene catalyst and a sufficient amount of organic aluminum (with a polar group-containing monomer) In the production process of polymerizing in the presence of equimolar or more), a polar group-containing olefin copolymer obtained by copolymerizing 1,2-epoxy-9-decene with ethylene and 1-butene is shown ( (See Patent Document 9).
However, according to the present invention, a large amount of organoaluminum is required for copolymerization of the polar group-containing olefin, and the production cost must be increased. In addition, a large amount of organoaluminum is present in the polar group-containing olefin copolymer as an impurity, causing deterioration of mechanical properties, discoloration, and promotion of deterioration, and further removing this leads to further cost increase. Furthermore, the effect of the invention is mainly to produce a polar group-containing olefin copolymer with high polymerization activity, and there is no mention of specific adhesion performance with different polar materials. Moreover, this patent document does not mention at all the resin physical properties necessary for the polar group-containing olefin copolymer to obtain sufficient adhesiveness with different polar materials, and the polarity is intended for high adhesive performance. Use as a group-containing olefin copolymer is not disclosed.

In view of the above conventional methods, the method of introducing a polar group into an olefin copolymer, which includes respective problems such as graft modification, high pressure radical polymerization process, and a method using a large amount of organoaluminum, A polar group-containing olefin copolymer containing an epoxy group, which is produced without depending on the method of the above, and exhibits excellent adhesion performance to a highly polar different material, and It can be said that the proposal of the laminated body using it was long-awaited.

Japanese Unexamined Patent Publication No. 50-004144 Japanese Patent No. 2516003 Japanese Unexamined Patent Publication No. 47-23490 Japanese Unexamined Patent Publication No. 48-11388 Japanese Unexamined Patent Publication No. 2010-202647 Japanese Unexamined Patent Publication No. 2010-150532 Japanese Unexamined Patent Publication No. 2010-150246 Japanese Unexamined Patent Publication No. 2010-260913 Japanese Patent No. 4672214

In view of the conventional problems described above as the background art, the object of the present invention is to dissimilarly dissimilar materials with high polarity, which are produced by any conventional method and which include each problem. To develop a polar group-containing olefin copolymer exhibiting excellent adhesion performance, a multi-component polar olefin copolymer, an olefin resin composition comprising a polar group-containing olefin copolymer and an olefin resin, and further It is an object of the present invention to provide the used adhesive, laminate, various molded products, and various composite products.

In order to solve the above problems, the present inventors have produced the copolymer by a simple and efficient production method in the production of a polar group-containing olefin copolymer, and the adhesion of the copolymer to a different material. In order to improve the performance, the method of polar group introduction, selection of polar group and polymerization catalyst, the molecular structure of the polar group-containing olefin copolymer, and the correlation between the structure of the copolymer and the adhesion performance were considered and examined. As a result, the polar group-containing olefin copolymer, the multi-component polar olefin copolymer, and the olefin containing the polar group-containing olefin copolymer and the olefin resin, which are excellent in adhesion performance with various different materials. System resin composition could be found, leading to the creation of the present invention.

The polymer of the first invention of the present invention is a specific polar group-containing olefin copolymer (A) polymerized using a transition metal catalyst, and if the content of the polar group-containing monomer is within a specific range, it is exceptional. It is characterized by being excellent in various physical properties while exhibiting excellent adhesive properties.

The polymer of the second invention of the present invention is a multi-component polar olefin copolymer (B) having a very narrow molecular weight distribution in a specific range and having a melting point in a specific range, and has a balance between adhesion and mechanical properties. It is characterized by a dramatic improvement in terms.

Furthermore, the third invention of the present invention gives the excellent physical properties of the olefin resin by adding the olefin resin (C) at a specific ratio to the polar group-containing olefin copolymer (A ′). In addition, the olefin-based resin composition (D) maintains a sufficient adhesion performance of the polar group-containing olefin copolymer with respect to different polar materials.

≪First invention≫
(1) An epoxy having a structural unit amount derived from at least one of ethylene and an α-olefin having 3 to 20 carbon atoms represented by 99.999 to 80 mol% and represented by the following structural formula (I) or the following structural formula (II) A polar group-containing olefin copolymer (A) containing 20 to 0.001 mol% of a structural unit derived from at least one of the polar group-containing monomers containing a group, in the presence of a transition metal catalyst. A polar group-containing olefin copolymer (A) obtained by polymerization and having a linear molecular structure and random copolymerization.

(In the structural formula (I), R ¹ is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, and R ² , R ³ , and R ⁴ each independently contains a hydrogen atom, a hydrocarbon group, or an epoxy group) And any one of R ² to R ⁴ is the following specific functional group including an epoxy group.
Specific functional group: a group that contains an epoxy group as essential and has a molecular structure consisting of carbon, oxygen, and hydrogen)

(In Structural Formula (II), R ⁵ to R ⁸ each independently represents a specific functional group shown below including a hydrogen atom, a hydrocarbon group, or an epoxy group, and any one of R ⁵ to R ⁸ Is a specific functional group including an epoxy group, and m is 0-2.
Specific functional group: a group that contains an epoxy group as essential and has a molecular structure consisting of carbon, oxygen, and hydrogen)
(2) The polar group-containing composition according to (1), wherein the melting point is 50 ° C. to 140 ° C., expressed by the temperature at the maximum peak position of the absorption curve measured by the differential scanning calorimetry (DSC) method Olefin copolymer (A).
(3) The polar group-containing olefin copolymer according to (1) or (2), wherein the amount of aluminum (Al) contained in the polar group-containing olefin copolymer is 0 to 100,000 μg per gram of copolymer. Combined (A).
(4) The polar group according to any one of (1) to (3), wherein the weight average molecular weight (Mw) determined by gel permeation chromatography (GPC) is 1,000 to 2,000,000. Containing olefin copolymer (A).
(5) The polar group according to any one of (1) to (4), wherein the weight average molecular weight (Mw) determined by gel permeation chromatography (GPC) is 33,000 to 2,000,000. Containing olefin copolymer (A).
(6) The polar group-containing olefin copolymer according to any one of (1) to (5), wherein the transition metal catalyst is a transition metal containing a chelating ligand and a Group 5-11 metal ( A).
(7) The polar group according to any one of (1) to (6), wherein the polar group-containing olefin copolymer is a transition metal catalyst in which a triarylphosphine or a triarylarsine compound is coordinated to palladium or nickel metal. Containing olefin copolymer (A).

≪Second invention≫
(8) One or more polar monomers (Z1) selected from one or more nonpolar monomer (X1) units selected from ethylene and an α-olefin having 3 to 10 carbon atoms and a monomer having an epoxy group A multi-component polar group-containing olefin copolymer comprising a unit and an optional acyclic or cyclic monomer (Z2) unit (provided that each unit of X1, Z1, and Z2 is essentially one or more types). A multi-component polar group-containing olefin copolymer (B) obtained by copolymerization in the presence of a transition metal catalyst and having a linear molecular structure and random copolymerization.
(9) The multiple according to (8), wherein the ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn) determined by gel permeation chromatography (GPC) is in the range of 1.5 to 3.5. -Based polar group-containing olefin copolymer (B).
(10) The melting point Tm (° C.) represented by the temperature at the maximum peak position of the absorption curve measured by the differential scanning calorimetry (DSC) method is 50 <Tm <128-6.0 [Z1] ( However, the monomer unit derived from Z1 is [Z1] (mol%).) The multi-component polar group-containing olefin copolymer (B) according to (8) or (9).
(11) The multi-component polar group-containing olefin copolymer according to any one of (8) to (10), wherein the polar monomer (Z1) unit selected from monomers having an epoxy group is 0.001 to 20.000 mol% Combined (B).
(12) The multi-component polar group-containing olefin copolymer (B) according to any one of (8) to (11), wherein the nonpolar monomer (X1) unit is ethylene.
(13) The multi-component polar group-containing olefin copolymer according to any one of (8) to (12), wherein the transition metal catalyst is a transition metal containing a chelating ligand and a Group 5-11 metal Combined (B).
(14) The multi-component polar group-containing olefin copolymer is a transition metal catalyst in which a triarylphosphine or a triarylarsine compound is coordinated to palladium or nickel metal, according to any one of (8) to (13) Multi-component polar group-containing olefin copolymer (B).

≪Third invention≫
(15) A linear molecular structure obtained by copolymerizing at least one of ethylene and an α-olefin having 3 to 20 carbon atoms and a polar group-containing monomer containing an epoxy group in the presence of a transition metal catalyst. A olefin-based resin composition (D) comprising a polar group-containing olefin copolymer (A ′) that is in the form of a random copolymer and an olefin-based resin (C), the blending of the olefin-based resin (C) An olefin resin composition (D) having an amount of 1 to 99,900 parts by weight per 100 parts by weight of the polar group-containing olefin copolymer (A ′).
(16) The olefin resin according to (15), wherein the polar group-containing monomer containing an epoxy group is a polar group-containing monomer containing an epoxy group represented by the following structural formula (I) or the following structural formula (II): Composition (D).

(In the structural formula (I), R ¹ is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, and R ² , R ³ , and R ⁴ each independently contains a hydrogen atom, a hydrocarbon group, or an epoxy group) And any one of R ² to R ⁴ is a specific functional group including an epoxy group.
Specific functional group: a group that contains an epoxy group as essential and has a molecular structure consisting of carbon, oxygen, and hydrogen)

(In Structural Formula (II), R ⁵ to R ⁸ each independently represents a specific functional group shown below including a hydrogen atom, a hydrocarbon group, or an epoxy group, and any one of R ⁵ to R ⁸ Is a specific functional group containing an epoxy group, and m is 0-2.
Specific functional group: a group that contains an epoxy group as essential and has a molecular structure consisting of carbon, oxygen, and hydrogen)
(17) In the polar group-containing olefin copolymer (A ′), the amount of structural units derived from at least one of ethylene and an α-olefin having 3 to 20 carbon atoms is 99.999 to 80 mol%, and includes a polar group containing an epoxy group The olefin resin composition (D) according to (15) or (16), wherein the amount of structural units derived from the group-containing monomer is 20 to 0.001 mol%.
(18) The olefin resin (C) is at least one of a homopolymer and a copolymer obtained by polymerizing a monomer selected from at least one of ethylene and an α-olefin having 3 to 20 carbon atoms. The olefin resin composition (D) according to any one of (15) to (17).
(19) The olefin according to any one of (15) to (18), wherein the olefin resin (C) is an ethylene homopolymer or a copolymer of ethylene and an α-olefin having 3 to 20 carbon atoms. -Based resin composition (D).
(20) Of the absorption curve measured by differential scanning calorimetry (DSC) of the polar group-containing olefin copolymer (A ′), the melting point represented by the temperature at the maximum peak position is 50 to 140 ° C. The olefin resin composition (D) according to any one of (15) to (19), wherein
(21) The polar group-containing olefin copolymer (A ′) is a copolymer polymerized in the presence of a transition metal catalyst of a Group 5-11 metal having a chelating ligand. (15) The olefin resin composition (D) according to any one of (20) to (20).
(22) The polar group-containing olefin copolymer (A ′) is a copolymer polymerized in the presence of a transition metal catalyst in which a triarylphosphine or a triarylarsine compound is coordinated to palladium or nickel metal. The olefin resin composition (D) according to any one of (15) to (21).
(23) The density of the olefin resin (C) measured in accordance with JIS K7112 is in the range of 0.890 to 1.20 g / cm ³ , according to any one of (15) to (22) Olefin resin composition (D ′).
(24) The melting point of the olefin resin (C) represented by the temperature at the maximum peak position of the absorption curve measured by differential scanning calorimetry (DSC) is in the range of 90 to 170 ° C. (15 The olefin resin composition (D ′) according to any one of) to (23).
(25) The melting point represented by the temperature at the maximum peak position of the absorption curve measured by differential scanning calorimetry (DSC) is in the range of 119 to 170 ° C., in any one of (15) to (24) The olefin resin composition (D ′) described.
(26) The olefin-based resin composition (D) according to any one of (15) to (25), wherein the heat of fusion ΔH measured by differential scanning calorimetry (DSC) is in the range of 80 to 300 J / g. ').
(27) The melting point represented by the temperature at the maximum peak position of the absorption curve measured by differential scanning calorimetry (DSC) of the olefin resin (C) is 30 to 124 ° C. (15) to (22 ) -Based olefin resin composition (D ″).

Furthermore, the present invention provides the polar group-containing olefin copolymer (A) (first invention), the multi-component polar group-containing olefin copolymer (B) (second invention), and the olefin resin composition (D). More specifically, the present invention relates to an adhesive, a laminate, and other products for use including at least one of an olefin resin composition (D ′) and an olefin resin composition (D ″) (third invention). Is as follows.

(28) The polar group-containing olefin copolymer (A) according to any one of (1) to (7), and the multi-component polar group-containing olefin copolymer according to any one of (8) to (14) ( B) or an adhesive containing the olefin resin composition (D), olefin resin composition (D ′), or olefin resin composition (D ″) according to any one of (15) to (27) Wood.
(29) The polar group-containing olefin copolymer (A) according to any one of (1) to (7), and the multi-component polar group-containing olefin copolymer according to any one of (8) to (14) ( B) or the olefin resin composition (D), olefin resin composition (D ′), olefin resin composition (D ″) according to any one of (15) to (27), and a substrate A laminate including at least a layer.
(30) The laminate according to (29), wherein the base material layer is selected from olefin-based resins, highly polar thermoplastic resins, metals, inorganic oxide vapor-deposited films, papers, cellophane, woven fabric, and nonwoven fabric.
(31) The base material layer includes at least one selected from a polyamide-based resin, a fluorine-based resin, a polyester-based resin, and an ethylene-vinyl alcohol copolymer (EVOH), according to (29) or (30) Laminated body.

The polar group-containing olefin copolymer (A) of the first invention of the present invention has a specific molecular structure and resin physical properties, so that the multi-component polar olefin copolymer (B) of the second invention is By having a very narrow molecular weight distribution in a specific range and having a melting point in a specific range, the third invention adds the olefin resin (C) at a specific ratio to the polar group-containing olefin copolymer (A ′). By making the olefin resin composition (D), the olefin resin composition (D ′), and the olefin resin composition (D ″), high adhesiveness with other substrates is expressed and industrially produced. The production of useful laminates and composite materials has been made possible, and this remarkable effect is demonstrated by the data of each example of the present invention described later and the comparison between each example and each comparative example.

Further, the polar group-containing olefin copolymer (A) according to the present invention, a multi-component polar olefin copolymer (B), an olefin resin composition (D) comprising a polar group-containing olefin copolymer and an olefin resin, Olefin-based resin composition (D ′) and olefin-based resin composition (D ″) are excellent in mechanical and thermal properties as well as adhesiveness, and also have chemical resistance, and are useful multilayer molding. It can be applied as a body, and formed into a multilayer film, a multilayer blow bottle, etc. by various uses such as extrusion molding and blow molding, and can be used for a wide range of applications.

FIG. 1 is an image diagram of the molecular structure of an olefin copolymer polymerized by a high pressure radical polymerization process. FIG. 2 is an image diagram of a molecular structure in the case of an olefin copolymer polymerized using a metal catalyst and having no long chain branching. FIG. 3 is an image diagram of a molecular structure in the case of an olefin copolymer polymerized using a metal catalyst and having a small amount of long chain branching. FIG. 4 is a graph showing the relationship between the blending ratio of the polar group-containing olefin copolymer (A′-3-1) and the adhesive strength with polyamide. FIG. 5 is a graph showing the relationship between the blending ratio of the polar group-containing olefin copolymer (A′-3-9) and the adhesive strength with polyamide. FIG. 6 is a graph showing the relationship between the blending ratio of the polar group-containing olefin copolymer (A′-3-2) and the adhesive strength with the polyamide. FIG. 7 is a graph showing the relationship between the blending ratio of the polar group-containing olefin copolymer (A′-3-3) and the adhesive strength with polyamide. FIG. 8 is a graph showing the relationship between the blending ratio of the polar group-containing olefin copolymer (A′-3-5) and the adhesive strength with polyamide. FIG. 9 is a graph showing the relationship between the blending ratio of the polar group-containing olefin copolymer (A′-3-4) and the adhesive strength with the fluororesin. FIG. 10 is a graph showing the relationship between the blending ratio of the polar group-containing olefin copolymer (A′-3-9) and the adhesive strength with the fluororesin.

In the following, the polar group-containing olefin copolymer (A), multi-component polar olefin copolymer (B) of the present invention, an olefin resin composition (D) containing a polar group-containing olefin copolymer and an olefin resin. ), The olefin-based resin composition (D ′), the olefin-based resin composition (D ″), and the adhesive and laminate using the same will be described specifically and in detail for each item.

[I] Polar group-containing olefin copolymer (A) (1) Polar group-containing olefin copolymer (A)
The polar group-containing olefin copolymer according to the present invention is a copolymer of ethylene or an α-olefin having 3 to 20 carbon atoms and an epoxy group-containing monomer, wherein the monomer unit is randomly copolymerized. It is a polymer and a copolymer having a substantially linear molecular structure.

The polar group-containing olefin copolymer (A) according to the present invention is obtained by polymerizing ethylene and / or an α-olefin having 3 to 20 carbon atoms and an epoxy group-containing monomer in the presence of a transition metal catalyst. It is characterized by being able to. The ethylene or α-olefin having 3 to 20 carbon atoms to be used for the polymerization is not particularly limited, but preferably contains ethylene as essential, and may further contain an α-olefin having 3 to 20 carbon atoms as necessary. Ethylene or α-olefin having 3 to 20 carbon atoms to be used for polymerization may be used alone or in combination of two or more. In addition, other monomers not containing a polar group may be further subjected to polymerization as long as they do not depart from the spirit of the present invention. The proportion of structural units derived from ethylene and / or α-olefin is usually 80 to 99.999 mol%, preferably 85 to 99.99 mol%, more preferably 90 to 99.98 mol%, more preferably 95 It is desirable to select from the range of ˜99.97 mol%.

(2) α-Olefin The α-olefin according to the present invention is an α-olefin having 3 to 20 carbon atoms and represented by the structural formula: CH ₂ ═CHR ¹⁸ (R ¹⁸ is a hydrocarbon having 1 to 18 carbon atoms) Group, which may have a straight chain structure or a branched structure). More preferably, it is an α-olefin having 3 to 12 carbon atoms, more preferably propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, 3-methyl-1-butene, An α-olefin selected from 4-methyl-1-pentene, more preferably an α-olefin selected from propylene, 1-butene, 1-hexene and 1-octene. The α-olefin used for polymerization may be used alone or in combination of two or more.

(3) Monomer containing no polar group The monomer containing no polar group in the present invention is a monomer having one or more carbon-carbon double bonds in the molecular structure, and the elements constituting the molecule are carbon and hydrogen. If it is only, it will not limit, For example, a diene, a triene, an aromatic vinyl monomer, a cyclic olefin etc. are mentioned, Preferably, it is a butadiene, isoprene, styrene, vinylcyclohexane, cyclohexene, vinyl norbornene, norbornene.

(4) Polar group-containing monomer The polar group-containing monomer according to the present invention needs to contain an epoxy group. If it is an olefin resin composition containing a polar group-containing olefin copolymer having an epoxy group, the polarity of a polyamide resin, a polyester resin, an ethylene-vinyl alcohol copolymer (EVOH), a fluororesin imparting adhesiveness, etc. It is possible to laminate and adhere to a high-temperature thermoplastic resin and a base material of a metal material such as aluminum and steel.

The polar group-containing monomer according to the present invention is preferably a monomer containing an epoxy group represented by the following structural formula (I) or structural formula (II).

(In Structural Formula (II), R ⁵ to R ⁸ each independently represents a specific functional group shown below including a hydrogen atom, a hydrocarbon group, or an epoxy group, and any one of R ⁵ to R ⁸ Is a specific functional group containing an epoxy group, and m is 0-2.
Specific functional group: a group that contains an epoxy group as essential and has a molecular structure consisting of carbon, oxygen, and hydrogen)

The molecular structure of the polar group-containing monomer is not particularly limited, but considering the ease of copolymerization in the presence of a transition metal catalyst and the handling of the polar group-containing monomer, the polar group-containing monomer represented by the structural formula (I) is More preferred. Furthermore, among the polar group-containing monomers represented by the structural formula (I), R ¹ is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, R ² , R ³ and R ⁴ are each independently a hydrogen atom, More preferably, it is any of the following specific functional groups including a hydrocarbon group or an epoxy group, and any one of R ² to R ⁴ is a specific functional group including an epoxy group. .
(Specific functional group: a group having a molecular structure composed of a carbon atom, an oxygen atom, and a hydrogen atom, which essentially includes an epoxy group and further includes any of a hydrocarbon group, a carbonyl group, and an ether group)

Examples of the polar group-containing monomer represented by the structural formula (I) or the structural formula (II) include 5-hexene epoxide, 6-heptene epoxide, 7-octene epoxide, 8-nonene epoxide, 9-decene epoxide, Ω-alkenyl epoxides such as 10-undecene epoxide, 11-dodecene epoxide, 2-methyl-6-heptene epoxide, 2-methyl-7-octene epoxide, 2-methyl-8-nonene epoxide, 2-methyl Ω-alkenyl epoxides having a branch in the molecular structure such as -9-decene epoxide, 2-methyl-10-undecene epoxide, allyl glycidyl ether, 2-methylallyl glycidyl ether, glycidyl ether of o-allylphenol, m -Glycidyl ether of allylphenol, p- Unsaturated glycidyl ethers such as glycidyl ether of allylphenol, 4-hydroxybutyl (meth) acrylate, acrylic acid, methacrylic acid, glycidyl p-styrylcarboxylate, endo-cis-bicyclo [2,2,1] hept-5 -Ene-2,3-dicarboxylic acid, endo-cis-bicyclo [2,2,1] hept-5-ene-2-methyl-2,3-dicarboxylic acid, itaconic acid, citraconic acid, butenetricarboxylic acid, etc. Cyclic olefins containing epoxy groups such as glycidyl esters of unsaturated carboxylic acids, epoxy hexyl norbornene, epoxy cyclohexane norbornene, methyl glycidyl ether norbornene, and others, 2- (o-vinylphenyl) ethylene oxide, 2- (p-vinylphenyl) Ethylene oxide, 2- (o Allylphenyl) ethylene oxide, 2- (p-allylphenyl) ethylene oxide, 2- (o-vinylphenyl) propylene oxide, 2- (p-vinylphenyl) propylene oxide, 2- (o-allylphenyl) propylene oxide, 2- (P-allylphenyl) propylene oxide, p-glycidylstyrene, 3,4-epoxy-1-butene, 3,4-epoxy-3-methyl-1-butene, 3,4-epoxy-1-pentene, 3, 4-epoxy-3-methyl-1-pentene, 5,6-epoxy-1-hexene, vinylcyclohexene monoxide, allyl-2,3-epoxycyclopentyl ether, 2,3-epoxy-5-vinylnorbornane, 1, Examples of monomers containing epoxy groups such as 2-epoxy-4-vinylcyclohexane That it is possible. Of these, 1,2-epoxy-9-decene, 4-hydroxybutyl acrylate glycidyl ether, glycidyl methacrylate, 1,2-epoxy-4-vinylcyclohexane and the like represented by the following structural formula are particularly preferable.
The epoxy group-containing monomer used for the polymerization may be used alone or in combination of two or more.

In the polar group-containing olefin copolymer (A) using a monomer containing an epoxy group, cross-linking between molecular chains may occur due to the reaction between the contained epoxy groups. As long as it does not depart from the gist of the present invention, intermolecular chain crosslinking may occur.

(5) Structural unit of polar group-containing olefin copolymer (A) The structural unit and the structural unit amount of the polar group-containing olefin copolymer according to the present invention will be described.
A structure derived from one molecule of ethylene or an α-olefin having 3 to 20 carbon atoms and an epoxy group-containing monomer is defined as one structural unit in the polar group-containing olefin copolymer. And what represented the ratio of each structural unit in a polar group containing olefin copolymer in mol% is a structural unit amount.

(6) Structural unit amount of polar group-containing monomer The structural unit amount derived from the epoxy group-containing monomer of the polar group-containing olefin copolymer (A) according to the present invention is usually in the range of 20 to 0.001 mol%, preferably It is selected from the range of 15 to 0.01 mol%, more preferably in the range of 10 to 0.02 mol%, more preferably in the range of 5 to 0.03 mol%, and it must be present in the polar group-containing olefin copolymer of the present invention. It is preferable. If the amount of the structural unit derived from the epoxy group-containing monomer is less than this range, the adhesion with a different polar material is not sufficient, and if it exceeds this range, sufficient mechanical properties cannot be obtained.

(7) Method for measuring amount of structural unit of polar group-containing monomer The amount of the structural unit of the polar group in the polar group-containing olefin copolymer (A) according to the present invention is determined using a ¹ H-NMR spectrum. ¹ H-NMR spectrum was measured by the following method. 200-250 mg of a sample having an inner diameter of 10 mmφ together with 2.4 ml of o-dichlorobenzene / deuterated benzene bromide (C ₆ D ₅ Br) = 4/1 (volume ratio) and hexamethyldisiloxane which is a chemical shift reference substance The sample was placed in an NMR sample tube, purged with nitrogen, sealed, heated and dissolved, and subjected to NMR measurement as a uniform solution. The NMR measurement was performed at 120 ° C. using a Bruker BioSpin Corporation AV400M NMR apparatus equipped with a 10 mmφ cryoprobe. ¹ H-NMR was measured at a pulse angle of 1 °, a pulse interval of 1.8 seconds, and an integration frequency of 1,024 times or more. The chemical shift was set so that the peak of methyl proton of hexamethyldisiloxane was 0.088 ppm, and the chemical shift of the peak due to other protons was based on this. ¹³ C-NMR was measured by a proton complete decoupling method with a pulse angle of 90 °, a pulse interval of 20 seconds, and a cumulative number of 512 times or more. The chemical shift was set such that the methyl carbon peak of hexamethyldisiloxane was set to 1.98 ppm, and the chemical shifts of peaks due to other carbons were based on this.

Structural unit amount of polar group-containing monomer [Structural unit amount of 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE)]
The peak integrated intensity sum of the polar group-containing olefin copolymer in the range of 0.3 to 3.1 ppm is IA1, and 2.4, 2.6, 3.0, 3.3, 3.4, 3.5 , And the sum of the integrated intensities of peaks due to protons of 4-HBAGE contained in the copolymer produced at 4.1 ppm was determined according to the following formula.
4-HBAGE content (mol%) = 40 × IX1 / (IA1−0.6 × IX1)

[Structural unit amount of 1,2-epoxy-9-decene (C8-EPO)]
Integral peak integrated intensity of polar group-containing olefin copolymer (A) in the range of 0.3 to 3.1 ppm is IA2, and is included in the copolymer generated at 2.4, 2.6, and 2.8 ppm. When the sum of the integrated intensities of the peaks due to C8-EPO protons was IX2, the sum was obtained according to the following equation.
C8-EPO content (mol%)
= (400/3) x IX2 / (IA2-11 / 3 x IX2)

[Structural unit amount of 1,2-epoxy-4-vinylcyclohexane (EP-VCH)]
The integrated intensity of the peak due to the polar group-containing olefin copolymer in the range of 0.3 to 3.2 ppm is IA2, and the integrated intensity of the peak due to the proton of EP-VCH contained in the copolymer around 3.0 ppm is generated. Was calculated according to the following equation.
EP-VCH content (mol%) = 100 × IX2 / (0.5 × IA2-2 × IX2)

[Structural unit amount of glycidyl methacrylate (GMA)]
The peak integrated intensity sum of the polar group-containing olefin copolymer (A) in the range of 0.3 to 3.2 ppm is IA3, and 2.5, 2.6, 3.1, 3.9, and 4.3. When the sum of the integrated intensities of peaks due to protons of GMA contained in the copolymer produced in ppm was IX3, the peak was obtained according to the following formula.
GMA content (mol%) = 80 × IX3 / (IA3-0.8 × IX3)

(8) Molecular structure of polar group-containing olefin copolymer (A) The polar group-containing olefin copolymer (A) according to the present invention comprises ethylene and / or an α-olefin having 3 to 20 carbon atoms and an epoxy group-containing monomer. It is a random copolymer of the copolymer.
Examples of the molecular structure of the polar group-containing olefin copolymer (A) in the present invention are shown in the following paragraphs. The random copolymer is the type of the adjacent structural unit that has a probability of finding each structural unit at a position in a given molecular chain of the A structural unit and the B structural unit in the example of the molecular structure shown in the following paragraph. Is a copolymer unrelated to. The molecular chain terminal of the polar group-containing olefin copolymer may be ethylene and / or an α-olefin having 3 to 20 carbon atoms, or may be an epoxy group-containing monomer. As described below, the molecular structure (example) of the polar group-containing olefin copolymer in the present invention is such that ethylene or an α-olefin having 3 to 20 carbon atoms and an epoxy group-containing monomer form a random copolymer. Yes.

In addition, when the molecular structure (example) of an olefin copolymer having a polar group introduced by graft modification is also referred to, a part of the olefin copolymer obtained by copolymerizing ethylene or an α-olefin having 3 to 20 carbon atoms is obtained. And graft modified to a monomer containing an epoxy group.

The polar group-containing olefin copolymer (A) according to the present invention is produced in the presence of a transition metal catalyst, and its molecular structure is linear. As shown in FIG. 1 and FIG. 2 and FIG. 3, respectively, an image diagram of an olefin copolymer polymerized by a high pressure radical polymerization process is illustrated in FIG. Depending on the molecular structure. This difference in molecular structure can be controlled by selecting a production method. For example, as described in Japanese Patent Application Laid-Open No. 2010-150532, the difference in molecular structure can also be controlled by a complex elastic modulus measured with a rotary rheometer. The molecular structure can be estimated. More specifically, when the phase angle δ (G * = 0.1 MPa) at the absolute value G * = 0.1 MPa of the complex elastic modulus measured with a rotary rheometer is 40 degrees or more, the molecular structure is as shown in FIG. 3 and a linear structure as shown in FIG. 3 that does not include any long-chain branching (FIG. 2) or a structure that includes a small amount of long-chain branching that does not affect the mechanical strength ( FIG. 3) is shown. In addition, when the phase angle δ (G * = 0.1 MPa) at the absolute value G * = 0.1 MPa of the complex elastic modulus measured with a rotary rheometer is lower than 40 degrees, the molecular structure is as shown in FIG. Shows a structure containing an excessive amount of long-chain branching and is inferior in mechanical strength. The phase angle δ at the absolute value G * = 0.1 MPa of the complex elastic modulus measured with a rotary rheometer is affected by both the molecular weight distribution and the long chain branching, but Mw / Mn ≦ 4, more preferably Mw / Mn ≦ If it is limited to three, it becomes an index of the amount of long chain branching, and the δ (G * = 0.1 MPa) value decreases as the number of long chain branches increases. In addition, if Mw / Mn is 1.5 or more, the δ (G * = 0.1 MPa) value does not exceed 75 degrees even when there is no long chain branching.

(9) Weight average molecular weight (Mw) of polar group-containing olefin copolymer (A)
The weight average molecular weight (Mw) of the polar group-containing olefin copolymer (A) according to the present invention is usually 1,000 to 2,000,000, preferably 10,000 to 1,500,000, and more preferably 20 It is desirable that the range is from 31,000 to 1,000,000, preferably from 31,000 to 800,000, more preferably from 33,000 to 800,000. When Mw is less than 1,000, physical properties such as mechanical strength and impact resistance are not sufficient, and adhesion with a different material with high polarity is also inferior. When Mw exceeds 2,000,000, the melt viscosity becomes very high and molding processing becomes difficult.

The polar group-containing olefin copolymer (A) weight average molecular weight (Mw) according to the present invention is determined by gel permeation chromatography (GPC). The molecular weight distribution parameter (Mw / Mn) is a value obtained by further obtaining the number average molecular weight (Mn) by gel permeation chromatography (GPC), and calculating the ratio of Mw to Mn, Mw / Mn.

The GPC measurement method according to the present invention is as follows.
(Measurement conditions) Model used: 150C manufactured by Waters Inc. Detector: MIRAN1A / IR detector manufactured by FOXBORO (measurement wavelength: 3.42 μm) Measurement temperature: 140 ° C. Solvent: Orthodichlorobenzene (ODCB) Column: AD806M manufactured by Showa Denko KK / S (3) Flow rate: 1.0 mL / min Injection volume: 0.2 mL
(Sample preparation) A 1 mg / mL solution was prepared using ODCB (containing 0.5 mg / mL BHT (2,6-di-t-butyl-4-methylphenol)) at 140 ° C. It takes about 1 hour to dissolve.
(Calculation of molecular weight) The standard polystyrene method is used, and the conversion from the retention capacity to the molecular weight is performed using a standard curve prepared in advance by standard polystyrene. The standard polystyrene used is a brand (F380, F288, F128, F80, F40, F20, F10, F4, F1, A5000, A2500, A1000) manufactured by Tosoh Corporation. A calibration curve is created by injecting 0.2 mL of a solution dissolved in ODCB (containing 0.5 mg / mL BHT) so that each is 0.5 mg / mL. The calibration curve uses a cubic equation obtained by approximation by the least square method. The viscosity equation [η] = K × Mα used for conversion to molecular weight uses the following numerical values.
PS: K = 1.38 × 10−4, α = 0.7
PE: K = 3.92 × 10 −4, α = 0.733
PP: K = 1.03 × 10−4, α = 0.78

(10) Melting point of polar group-containing olefin copolymer (A) The melting point of the olefin resin (A) according to the present invention is indicated by the maximum peak temperature of the endothermic curve measured by a differential scanning calorimeter (DSC). The maximum peak temperature is the height from the baseline when DSC measurement shows multiple peaks in the endothermic curve when the heat flow (mW) is taken on the vertical axis and the temperature (° C) is taken on the horizontal axis. Indicates the maximum peak temperature, and when there is only one peak, it indicates the peak temperature.
When polyethylene is assumed, the melting point is preferably 50 ° C. to 140 ° C., more preferably 60 ° C. to 138 ° C., and most preferably 70 ° C. to 135 ° C. If it is lower than this range, the heat resistance is not sufficient, and if it is higher than this range, the adhesiveness is poor.

[II] Multi-component polar group-containing olefin copolymer (B) (1) Multi-component polar group-containing olefin copolymer (B)
The multi-component polar group-containing olefin copolymer (B) according to the present invention contains a polar group selected from a non-polar monomer (X1) selected from ethylene and an α-olefin having 3 to 10 carbon atoms and a monomer having an epoxy group. This is a multi-component polar olefin copolymer (B) that essentially contains three components consisting of a monomer (Z1) and another monomer (Z2). The multi-component polar group-containing olefin copolymer (B) obtained by copolymerizing (X1), (Z1) and (Z2) is already known in graft polymerization, high-pressure radical polymerization and other polymerization methods described above. However, in the present invention, the known multi-component polar group-containing olefin copolymer is a random copolymer polymerized in the presence of a transition metal, and the molecular structure is substantially reduced. It has a characteristic that it is linear, and also has a requirement of having an extraordinary adhesive effect, so that it is significantly different from known copolymers.

(2) Nonpolar monomer (X1)
Examples of the nonpolar monomer (X1) according to the present invention include ethylene and / or an α-olefin having 3 to 10 carbon atoms.
Preferable specific examples include ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, 3-methyl-1-butene, and 4-methyl-1-pentene. A specific example is ethylene. One kind of α-olefin may be used, or a plurality of α-olefins may be used in combination.
Examples of the two combinations include ethylene-propylene, ethylene-1-butene, ethylene-1-hexene, ethylene-1-octene, propylene-1-butene, propylene-1-hexene, and propylene-1-octene. .
Examples of the three combinations include ethylene-propylene-1-butene, ethylene-propylene-1-hexene, ethylene-propylene-1-octene, propylene-1-butene-hexene, and propylene-1-butene-1-octene. It is done.

(3) Polar group-containing monomer containing an epoxy group (Z1)
The polar group-containing monomer (Z1) according to the present invention needs to contain an epoxy group. For olefin copolymers with epoxy groups, polyamide resins, polyester resins, ethylene-vinyl alcohol copolymers (EVOH), highly polar thermoplastic resins such as adhesive fluororesins, aluminum, steel, etc. It becomes possible to laminate and adhere to the base material of the metal material.

As the polar group-containing monomer containing an epoxy group, those exemplified in the description of the polar group-containing olefin copolymer (A) can be appropriately used.

(4) Other monomer (Z2)
The other monomer (Z2) which is the third component can be any monomer as long as it is not the same as (X1) and (Z1). For example, when ethylene is selected as (X1), ethylene cannot be used as (Z2), but other α-olefins such as 1-butene and 1-hexene can be used. Similarly, when 4-hydroxybutyl glycidylether is selected as (Z1), for example, 4-hydroxybutyryl glyceryl is not 4-hydroxybutyryl acrylate monomer that is not 4-hydroxybutyryl glycidylether or a monomer that contains acid anhydride. I can do it.

The other monomer (Z2) is a compound that essentially contains a carbon-carbon double bond in the molecule, and may have a substituent (polar group) containing an atom having an electronegativity different from that of the carbon atom. It may be good or not.
Here, examples of polar groups include halogens, hydroxyl groups (—OH), carboxyl groups (—COOH), formyl groups (—CHO), alkoxy groups (—OR), ester groups (—COOR), nitrile groups ( -CN), ether group (-O-), carbonyl group (= CO), epoxy group, acid anhydride group.

The other monomer (Z2) according to the present invention is classified into an acyclic monomer or a cyclic monomer depending on the position of the carbon-carbon double bond in the molecule. The acyclic monomer may have a cyclic structure in the molecule as long as the carbon-carbon double bond is located in the acyclic portion of the molecule.

(4-1) Acyclic monomer Examples of the acyclic monomer include α-olefins, unsaturated carboxylic acids, unsaturated carboxylic acid anhydrides (when the carbon-carbon double bond is not cyclic), (meth) acrylic acid esters, and the like. Can be mentioned.

The α-olefin according to the present invention is an α-olefin having 3 to 20 carbon atoms and is represented by the structural formula: CH ₂ ═CHR ¹⁸ . Here, R ¹⁸ is a hydrogen atom or a hydrocarbon group having 1 to 18 carbon atoms, and may be linear, branched or cyclic, and may have an unsaturated bond. Furthermore, it may contain a hetero atom at any position within R ^18. Among these, preferred α-olefins include those in which R ¹⁸ is a hydrogen atom or an α-olefin having 1 to 10 carbon atoms.
Specific examples of the α-olefin include ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, 3-methyl-1-butene, 4-methyl-1-pentene, Vinylcyclohexene, 1,2-epoxy-4-vinylcyclohexene, styrene, 6-hydroxy-1-hexene, 8-hydroxy-1-octene, 9,10-oxy-1-decene, 7- (N, N-dimethyl) Amino) -1-peptene, 3-triethoxysilyl-1-propene, allyl alcohol, 2-allyloxyethanol, allyl acetate and the like.

Specific examples of the unsaturated carboxylic acid include methacrylic acid, maleic acid, fumaric acid, tetrahydrophthalic acid, itaconic acid, citraconic acid, crotonic acid, isocrotonic acid, norbornene dicarboxylic acid, bicyclo [2,2,1] hept-2- And ene-5,6-dicarboxylic acid.

Specific examples of the unsaturated carboxylic acid anhydride (when the carbon-carbon double bond is not cyclic) include itaconic anhydride, 2,7-octadien-1-yl succinic anhydride, and the like.

The (meth) acrylic acid ester according to the present invention is a compound represented by the structural formula: CH ₂ ═C (R ²¹ ) CO ₂ (R ²² ). Here, R ²¹ is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, which may be linear, branched or cyclic, and may have an unsaturated bond. R ²² is a hydrocarbon group having 1 to 30 carbon atoms, and may be linear, branched, or cyclic, and may have an unsaturated bond. Furthermore, it may contain a hetero atom at any position within R ^22.
Preferable (meth) acrylic acid ester includes (meth) acrylic acid ester in which R ²¹ is a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms. More preferable examples include acrylic acid esters in which R ²¹ is a hydrogen atom or methacrylic acid esters in which R ²¹ is a methyl group.

Specific examples of (meth) acrylic acid esters include, for example, methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, and (meth) acrylic acid n. -Butyl, isobutyl (meth) acrylate, t-butyl (meth) acrylate, pentyl (meth) acrylate, hexyl (meth) acrylate, cyclohexyl (meth) acrylate, octyl (meth) acrylate, (meth) 2-ethylhexyl acrylate, nonyl (meth) acrylate, decyl (meth) acrylate, dodecyl (meth) acrylate, phenyl (meth) acrylate, toluyl (meth) acrylate, benzyl (meth) acrylate, (meth ) Hydroxyethyl acrylate, hydroxybutyl (meth) acrylate, 1,4-cyclohe Sandimethanol mono (meth) acrylate, 4-hydroxybutyl (meth) acrylate glycidyl ether (4-HBAGE), 2-methoxyethyl (meth) acrylate, 3-methoxypropyl (meth) acrylate, (meth) acryl Examples include glycidyl acid, ethylene oxide (meth) acrylate, trifluoromethyl (meth) acrylate, 2-trifluoromethylethyl (meth) acrylate, and perfluoroethyl (meth) acrylate.
A single (meth) acrylic acid ester may be used, or a plurality of (meth) acrylic acid esters may be used in combination.
Preferred compounds include methyl acrylate, ethyl acrylate, n-butyl acrylate, t-butyl acrylate, and (4-hydroxybutyl) acrylate glycidyl ether.

(4-2) Cyclic monomer Examples of the cyclic monomer include norbornene-based olefins and unsaturated carboxylic acid anhydrides (when the carbon-carbon double bond is cyclic), such as cyclopentene, cyclohexene, norbornene, and ethylidene norbornene. Examples of compounds having a cyclic olefin skeleton and derivatives thereof include compounds containing a hydroxyl group, an alkoxide group, a carboxylic acid group, an ester group, an aldehyde group, an acid anhydride group, and an epoxy group.

Specific examples of the unsaturated carboxylic acid anhydride (when the carbon-carbon double bond is cyclic) include maleic anhydride, citraconic anhydride, tetrahydrophthalic anhydride, 5-norbornene-2,3-dicarboxylic acid anhydride, 3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride, tetracyclo [6.2.1.13,6.02,7] dodec-9-ene-4,5-dicarboxylic anhydride Etc.

Examples of norbornene-based olefins include compounds represented by the following structural formula (E) and structural formula (F). Structural formula (E) is norbornene having an acid anhydride group (Diels-Alder reaction product of cyclopentadiene and maleic anhydride, ie, 5-norbornene-2,3-dicarboxylic acid anhydride), (F) is norbornene having a hydroxyl group.

(5) Monomer (X1), (Z1), (Z2) structural unit amount The multidimensional polar group-containing olefin copolymer (B) according to the present invention comprises (X1), (Z1), and (Z2), respectively. It is necessary to contain one or more types and to contain a total of three or more types of monomer units.
The structural unit amount of (X1) is 80.000 mol% to 99.998 mol%, preferably 80.000 mol% to 99.98 mol%, more preferably 80.000 mol% to 99.94 mol%. The structural unit amount of (Z1) is 0.001 mol% to 19.999 mol%, preferably 0.01 mol% to 15.000 mol%, more preferably 0.02 mol% to 10.000 mol%, still more preferably 0.02 mol%. To 5.000 mol%. The structural unit amount of (Z2) is 0.001 mol% to 19.999 mol%, preferably 0.01 mol% to 15.000 mol%, more preferably 0.02 mol% to 10.000 mol%, still more preferably 0.02 mol%. To 5.000 mol%. (X1) + (Z1) + (Z2) must be 100 mol%.

In the multi-component olefin copolymer (B) according to the present invention, when polymerized in the presence of a transition metal catalyst and ethylene is selected as (X1), the degree of crystallinity of the copolymer is that of monomers other than ethylene. It depends on the content. For example, in the case of a copolymer of ethylene and (Z1), the content of (Z1) is a strong factor that determines the crystallinity of the copolymer.
By the way, in the examination process of the present invention, the present inventors have found that, in addition to the (Z1) content of the copolymer, the lower melting point shows higher adhesiveness as a factor affecting the adhesive performance. . That is, in order to further improve the adhesion performance, it is important to lower the melting point of the copolymer by containing (Z1) in an amount of 0.001 mol% or more and further containing another monomer (Z2). It was. The main reason for copolymerizing the monomer (Z2) with the copolymer is to control the melting point of the copolymer, and this is why the monomer (Z2) is not limited. Further, the monomer (Z1) is often more expensive than the monomer (X1) or the monomer (Z2). According to the present invention, once the minimum amount of monomer (Z1) necessary for improving the adhesiveness is determined, the melting point is lowered by further copolymerizing an appropriate amount of monomer (Z2), and the adhesion performance is further improved. It can be increased.
It is not clear why the copolymer has a lower melting point and is more flexible so that the adhesiveness can be improved. However, JIS K6854-1 to 4 (1999) “Adhesives—Peeling bond strength test method” When carrying out a peel test as exemplified in the above, if the adhesive is flexible, the adhesive itself is greatly deformed, and the amount of deformation is measured as stress, resulting in high adhesion. I guess it is.
Furthermore, the present invention, which can arbitrarily adjust the melting point of the copolymer without changing the content of the polar group derived from the monomer (Z1), can improve the adhesion performance and mechanical properties of the copolymer, particularly impact resistance. It is possible to achieve both.

(6) Structural unit of polar group-containing olefin copolymer (B) The structural unit and structural unit amount of the multi-component polar group-containing olefin copolymer (B) according to the present invention will be described.
A structure derived from one molecule of ethylene and / or an α-olefin (X1) having 3 to 10 carbon atoms, an epoxy group-containing monomer (Z1), and another monomer (Z2) is converted into a polar group-containing olefin copolymer (B ) Is defined as one structural unit. And what represented the ratio of each structural unit in a polar group containing olefin copolymer (B) by mol% is a structural unit amount.

(7) Structural Unit Amount of Epoxy Group-Containing Monomer (Z1) The structural unit amount of (Z1) according to the present invention is usually in the range of 0.001 mol% to 19.999 mol%, preferably 0.01 mol% to 15.000 mol. %, More preferably in the range of 0.02 mol% to 10.000 mol%, more preferably in the range of 0.02 mol% to 5.000 mol%, and is always present in the copolymer of the present invention. It is preferable. If the amount of the structural unit derived from the polar group-containing monomer is less than this range, the adhesiveness with a different polar material is not sufficient, and if it exceeds this range, sufficient mechanical properties cannot be obtained. Furthermore, the polar group-containing monomer used may be used alone or in combination of two or more. The structural unit amount of each monomer can be measured by the method using ¹ H-NMR described above.

(8) Weight average molecular weight (Mw) and molecular weight distribution parameter (Mw / Mn) of multi-component polar group-containing olefin copolymer (B)
The weight average molecular weight (Mw) of the multi-component polar group-containing olefin copolymer (B) according to the present invention is usually 1,000 to 2,000,000, preferably 10,000 to 1,500,000, more preferably. Is preferably in the range of 20,000 to 1,000,000, preferably 31,000 to 800,000, more preferably 33,000 to 800,000. If the Mw is less than 1,000, physical properties such as mechanical strength and impact resistance are not sufficient, and if the Mw exceeds 2,000,000, the melt viscosity becomes very high and the molding process becomes difficult.

The ratio (Mw / Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) of the multi-component polar group-containing olefin copolymer (B) according to the present invention is usually 1.5 to 3.5, preferably It is desirable that the range is 1.6 to 3.3, more preferably 1.7 to 3.0. If the Mw / Mn is less than 1.5, various workability including molding of the laminate is not sufficient, and if it exceeds 3.5, the adhesive strength is inferior. Moreover, (Mw / Mn) may be expressed as a molecular weight distribution parameter.

(9) Melting Point The relationship between the melting point Tm (° C.) and the polar group-containing monomer content [Z1] (mol%) of the multi-component olefin copolymer (B) according to the present invention is:
60 <Tm <128-6.0 [Z1]
It needs to be.

As a factor affecting the adhesive performance of the copolymer, in addition to the (Z1) content of the copolymer, it was found that the melting point of the copolymer has a great influence, and that the lower melting point shows higher adhesiveness. . However, as a result of investigation by the present inventors, for example, in the case of a binary copolymer of ethylene and (Z1) in which ethylene is selected as (X1), the melting point of the copolymer depends on the (Z1) content, and 128 It was extremely difficult to make the temperature lower than −6.0 [Z1] (° C.), and there was a limit to the improvement in adhesion performance.
Therefore, when the melting point of the copolymer according to the present invention exceeds 128-6.0 [Z1], an improvement in adhesiveness cannot be expected and sufficient adhesiveness cannot be exhibited. Moreover, if melting | fusing point is less than 60 degreeC, the heat resistance required minimum as an ethylene-type copolymer cannot be hold | maintained.

(10) Molecular structure of multi-component polar group-containing olefin copolymer (B) Polar group-containing olefin copolymer (B) according to the present invention is a random copolymer of (X1), (Z1), (Z2). It is.

The multi-component polar group-containing olefin copolymer (B) according to the present invention is produced in the presence of a transition metal catalyst, and its molecular structure is linear.

[III] Production of Polar Group-Containing Olefin Copolymer (A), Polar Group-Containing Olefin Copolymer (A ′), Multi-component Polar Group-Containing Olefin Copolymer (B) The method for producing the polymer (A), the polar group-containing olefin copolymer (A ′), and the multi-component polar group-containing olefin copolymer (B) is to appropriately copolymerize various monomers using a transition metal catalyst. Obtained by.
(1) Polymerization catalyst for polar group-containing olefin copolymer (A), polar group-containing olefin copolymer (A ′), multi-component polar group-containing olefin copolymer (B) The polar group-containing olefin copolymer according to the present invention The kind of the polymerization catalyst used for the production of the polymer (A), the polar group-containing olefin copolymer (A ′), and the multi-component polar group-containing olefin copolymer (B) is ethylene and / or 3 to 20 carbon atoms. Although it is not particularly limited as long as it can copolymerize an α-olefin and an epoxy group-containing monomer, for example, a transition metal compound of Groups 5 to 11 having a chelating ligand can be mentioned.
Specific examples of preferred transition metals include vanadium atom, niobium atom, tantalum atom, chromium atom, molybdenum atom, tungsten atom, manganese atom, iron atom, platinum atom, ruthenium atom, cobalt atom, rhodium atom, nickel atom, palladium atom, A copper atom etc. are mentioned.
Of these, vanadium atoms, iron atoms, platinum atoms, cobalt atoms, nickel atoms, palladium atoms, and rhodium atoms are preferable, and platinum atoms, cobalt atoms, nickel atoms, and palladium atoms are particularly preferable. These metals may be single or plural.

Furthermore, the transition metal of the transition metal complex of the present invention is an element in which M is selected from the group consisting of nickel (II), palladium (II), platinum (II), cobalt (II) and rhodium (III). However, from the viewpoint of polymerization activity, nickel (II) is particularly preferable from the viewpoint of polymerization activity. The chelating ligand has at least two atoms selected from the group consisting of P, N, O, and S, and is bidentate or multidentate. It contains a ligand and is electronically neutral or anionic. The structure is illustrated in a review by Brookhart et al. (Chem. Rev., 2000, 100, 1169).
Preferably, examples of the bidentate anionic P and O ligand include phosphorus sulfonic acid, phosphorus carboxylic acid, phosphorus phenol, and phosphorus enolate. Other examples of the bidentate anionic N and O ligand include salicyl. Examples thereof include aldoiminate and pyridinecarboxylic acid, and other examples include diimine ligands, diphenoxide ligands, and diamide ligands.

The structure of the metal complex obtained from the chelating ligand is represented by the following structural formulas (A) and / or (B) coordinated by an arylphosphine compound, arylarsine compound or arylantimony compound which may have a substituent. expressed.

(In Structural Formulas (A) and (B), M represents a transition metal belonging to any of Groups 5 to 11 of the periodic table of elements, that is, the aforementioned transition metal. X ¹ represents oxygen, sulfur,- Represents SO ₃ — or —CO ₂ —, Y ¹ represents carbon or silicon, n represents an integer of 0 or 1, E ¹ represents phosphorus, arsenic or antimony R ³ and R ⁴ Each independently represents hydrogen or a hydrocarbon group that may contain a heteroatom having 1 to 30 carbon atoms, and R ⁵ each independently contains hydrogen, a halogen, or a heteroatom having 1 to 30 carbon atoms. Each of R ⁶ and R ⁷ independently represents a hydrogen atom, a halogen atom, a hydrocarbon group that may contain 1 to 30 carbon atoms, OR ² , CO _2; R ² , CO ₂ M ′, C (O) N (R ¹ ) ₂ , C (O ) R ² , SR ² , SO ₂ R ² , SOR ² , OSO ₂ R ² , P (O) (OR ² ) _2-y (R ¹ ) _y , CN, NHR ² , N (R ² ) ₂ , Si (OR ¹ ) _3-x (R ¹ ) _x , OSi (OR ¹ ) _3-x (R ¹ ) _x , NO ₂ , SO ₃ M ′, PO ₃ M ′ ₂ , P (O) (OR ₂ ) ₂ M ′ represents an epoxy-containing group, M ′ represents an alkali metal, alkaline earth metal, ammonium, quaternary ammonium or phosphonium, x is an integer from 0 to 3, and y is from 0 to 2 R ⁶ and R ⁷ may be connected to each other to form an alicyclic ring, an aromatic ring, or a heterocyclic ring containing a heteroatom selected from oxygen, nitrogen, and sulfur. The number of ring members is 5 to 8, and it may or may not have a substituent on the ring. ^1, .R ² representing a hydrocarbon group having 1 to hydrogen or carbon 20, .L ¹ representing a hydrocarbon group having 1 to 20 carbon atoms, represents a ligand coordinated to M. Further, R ³ And L ¹ may be bonded to each other to form a ring.) More preferably, it is a transition metal complex represented by the following structural formula (C).

(In the structural formula (C), M represents a transition metal belonging to any of Groups 5 to 11 of the periodic table of the elements, that is, the above-described transition metal. X1 represents oxygen, sulfur, —SO ₃ —, or Represents —CO ₂ —, Y ¹ represents carbon or silicon, n represents an integer of 0 or 1. E1 represents phosphorus, arsenic or antimony, R ³ and R ⁴ each independently represent Represents hydrogen or a hydrocarbon group optionally containing a heteroatom having 1 to 30 carbon atoms, each R ⁵ independently represents hydrogen, halogen, or a hydrocarbon optionally containing a heteroatom having 1 to 30 carbon atoms; R ⁸ , R ⁹ , R ¹⁰ and R ¹¹ each independently represents a hydrogen atom, a halogen atom, a hydrocarbon group which may contain a C 1-30 hetero atom, OR ² , CO _2. ^{_{R 2, CO 2 M ',}} C (O) N (R 1) ^{^{_{^{, C (O) R 2,}}}} SR 2, SO 2 R 2, SOR 2, OSO 2 R 2, P (O) (OR 2) 2-y (R 1) y, CN, NHR 2, N (R 2 ) ₂ , Si (OR ¹ ) _3-x (R ¹ ) _x , OSi (OR ¹ ) _3-x (R ¹ ) _x , NO ₂ , SO ₃ M ′, PO ₃ M ′ ₂ , P (O) ( OR ² ) ₂ M ′ or an epoxy-containing group, where M ′ represents an alkali metal, alkaline earth metal, ammonium, quaternary ammonium, or phosphonium, x is an integer from 0 to 3, and y is Represents an integer of 0 to 2. In addition, a plurality of groups appropriately selected from R ⁸ to R ¹¹ are connected to each other to form an alicyclic ring, an aromatic ring, or a heteroatom selected from oxygen, nitrogen, and sulfur. It may form a heterocyclic ring containing at this time, the number of ring members is 5 to 8, and is substituted on the ring. Have a good .R ¹ need not have the .R ² representing a hydrocarbon group having 1 to hydrogen or carbon 20 represents a hydrocarbon group having 1 -C 20 .L ¹ represents a ligand coordinated to M. R ³ and L ¹ may be bonded to each other to form a ring.)

Here, as the catalyst of the group 5-11 transition metal compound having a chelating ligand, there are typically known so-called catalysts called SHOP type and Drent type. The SHOP-based catalyst is a catalyst in which a phosphorus-based ligand having an aryl group which may have a substituent is coordinated to nickel metal (see, for example, International Publication No. 2010/050256). The Drent system is a catalyst in which a phosphorus-based ligand having an aryl group which may have a substituent is coordinated to palladium metal (see, for example, Japanese Patent Application Laid-Open No. 2010-202647).

(2) Organometallic compound In the production of the polar group-containing olefin copolymer (A), polar group-containing olefin copolymer (A ′), and multi-component polar group-containing olefin copolymer (B) according to the present invention, epoxy is used. After bringing a group-containing monomer into contact with a small amount of an organometallic compound, ethylene and / or an α-olefin having 3 to 20 carbon atoms and an epoxy group-containing monomer are copolymerized in the presence of the transition metal catalyst. The polymerization activity can be further increased.
The organometallic compound is an organometallic compound including a hydrocarbon group which may have a substituent, and can be represented by the following structural formula (H).
R ³⁰ _n M30X30 _mn structural formula (H)
(In the formula, R ³⁰ represents a hydrocarbon group which may have a substituent having 1 to 12 carbon atoms, and M 30 represents from the first group, the second group, the 12th group, and the 13th group of the periodic table. A metal selected from the group consisting of X30 represents a halogen atom or a hydrogen atom, m is a valence of M30, and n is 1 to m.)

Examples of the organometallic compound represented by the structural formula (H) include alkylaluminums such as tri-n-butylaluminum, tri-n-hexylaluminum, tri-n-octylaluminum, tri-n-decylaluminum, and methylaluminum. Examples include alkylaluminum halides such as dichloride, ethylaluminum dichloride, dimethylaluminum chloride, diethylaluminum chloride, and diethylaluminum ethoxide, and trialkylaluminum is preferably selected. More preferably, a trialkylaluminum having a hydrocarbon group having 4 or more carbon atoms, more preferably a trialkylaluminum having a hydrocarbon group having 6 or more carbon atoms, more preferably tri-n-hexylaluminum or trialkylaluminum. -N-octylaluminum and tri-n-decylaluminum are selected, and tri-n-octylaluminum can be most preferably used.
The organometallic compound may be brought into contact in an amount such that the molar ratio to the polar group-containing comonomer is 10 ⁻⁵ to 0.9, preferably 10 ⁻⁴ to 0.2, and more preferably 10 ⁻⁴ to 0.1. It is preferable from the viewpoint of polymerization activity and cost.

(2-1) Residual amount of aluminum (Al) Polar group-containing olefin copolymer (A), polar group-containing olefin copolymer (A ′), multi-component polar group-containing olefin copolymer (B aluminum (Al) content remaining in 1g of) is preferably less 100,000 micrograms _Al / g, more preferably not more than 70,000μg _Al / g, or less more preferably 20,000μg _{_Al} / g, 10,000μg _Al / g or less and particularly preferably a suitably below 5,000 micrograms _Al / g, and more preferably less 1,000 .mu.g _Al / g, is most preferred less 500 [mu] g _Al / g. When the amount is larger than this, the mechanical properties are deteriorated, the polymerization product is discolored and the deterioration is accelerated. Aluminum (Al) residual amounts of good lesser the extent possible, for example, may be a very small amount of about 1 [mu] g _Al / g, it may be a 0 Pg _Al / g. In addition, μg _Al / g means that the amount of aluminum (Al) contained in 1 g of the polar group-containing olefin copolymer is expressed in μg.

(2-2) Aluminum (Al) content The polar group-containing olefin copolymer (A), polar group-containing olefin copolymer (A ′), and multi-component polar group-containing olefin copolymer (B) according to the present invention The amount of aluminum (Al) contained can be calculated as a value obtained by dividing the amount of aluminum contained in the alkylaluminum subjected to polymerization by the yield of the obtained polar group-containing olefin copolymer.

In addition, the amount of aluminum (Al) contained in the polar group-containing olefin copolymer (A), the polar group-containing olefin copolymer (A ′), and the multi-component polar group-containing olefin copolymer (B) is the polymerization of alkyl aluminum. Although it is calculated from the charged amount, it may be measured by fluorescent X-ray analysis or inductively coupled plasma emission (ICP) analysis. When using fluorescent X-ray analysis or ICP analysis, it can be measured, for example, by the following method.

<1> Fluorescent X-ray analysis 3 to 10 g of a measurement sample is weighed and heated and pressed with a heating press to produce a flat sample having a diameter of 45 mm. The measurement is performed on a portion having a central diameter of 30 mm of the flat sample, and measurement is performed under the following conditions using a scanning fluorescent X-ray analyzer “ZSX100e” (Rh tube 4.0 kW) manufactured by Rigaku Denki Kogyo.
・ X-ray output: 50kV-50mA
-Spectral crystal: PET
・ Detector: PC (proportional counter)
-Detection line: Al-Kα line The aluminum content can be obtained from a calibration curve prepared in advance and the results measured under the above conditions. A calibration curve can be prepared by measuring the aluminum content of a plurality of polyethylene resins by ICP analysis and further subjecting these polyethylene resins to fluorescent X-ray analysis under the above conditions.

<2> Inductively coupled plasma emission (ICP) analysis A measurement sample, 3 ml of special grade nitric acid, and 1 ml of hydrogen peroxide (hydrogen peroxide content 30% by weight) are placed in a Teflon (registered trademark) container, and a microwave decomposition apparatus (milestone) Using General MLS-1200MEGA), the thermal decomposition operation is performed at a maximum of 500 W, and the measurement sample is made into a solution. The aluminum content can be measured by subjecting the measurement sample in solution to an ICP emission spectroscopic analyzer (IRIS-AP manufactured by Thermo Jarrel Ash). The aluminum content is quantified using a calibration curve prepared using a standard solution having a known aluminum element concentration.

(3) Polymerization method of polar group-containing olefin copolymer (A), polar group-containing olefin copolymer (A ′), multi-component polar group-containing olefin copolymer (B) Polar group-containing olefin copolymer according to the present invention The polymerization method of the polymer (A), the polar group-containing olefin copolymer (A ′), and the multi-component polar group-containing olefin copolymer (B) is not limited. Slurry polymerization in which at least a part of the produced polymer becomes a slurry in the medium, bulk polymerization using the liquefied monomer itself as a medium, gas phase polymerization carried out in the vaporized monomer, or polymer produced in a monomer liquefied at high temperature and high pressure High-pressure ionic polymerization in which at least a part of the polymer is dissolved is preferably used. The polymerization format may be any of batch polymerization, semi-batch polymerization, and continuous polymerization. Moreover, living polymerization may be sufficient and it may superpose | polymerize, combining chain transfer. Furthermore, so-called chain shunting agent (CSA) may be used in combination to perform chain shunting reaction or coordinative chain transfer polymerization (CCTP). Specific manufacturing processes and conditions are disclosed in, for example, Japanese Unexamined Patent Application Publication No. 2010-260913 and Japanese Unexamined Patent Application Publication No. 2010-202647.

[IV] Olefin resin composition (D)
(1) About Olefin Resin Composition (D) The olefin resin composition (D) according to the present invention contains the olefin resin (C) with respect to 100 parts by weight of the polar group-containing olefin copolymer (A ′). 1 to 99,900 parts by weight are blended. The amount of the olefin resin (C) is preferably 1 to 99,000 parts by weight, more preferably 1 to 90,000 parts by weight, still more preferably 1 to 50,000 parts by weight, and particularly 1 to 19,900 parts by weight. Part is suitable. Even if the blending amount of the olefin resin (C) is less than 1 part by weight or more than 99,900 parts by weight, the adhesiveness of the olefin resin composition (D) becomes poor.
When the polar group-containing olefin copolymer (A ′) in the olefin resin composition (D) is a polar group-containing olefin copolymer produced by a high pressure radical process, a small amount of the olefin resin (C) is used. Just by blending, the adhesiveness is drastically lowered. On the other hand, if the polar group-containing olefin copolymer in the olefin resin composition is the polar group-containing olefin copolymer (A ′) according to the present invention, the blending ratio of the olefin resin (C) is increased. However, sufficient adhesion performance is maintained.

The polar group-containing olefin copolymer (A ′) contained in the olefin resin composition (D) according to the present invention may be single or plural. Moreover, the olefin resin (C) may be used alone or in combination.

(2) Method for Producing Olefin Resin Composition (D) The olefin resin composition (D) according to the present invention can be produced using a known method. For example, a polar group-containing olefin copolymer ( A), the olefin resin (C), and other components added as required, such as single screw extruder, twin screw extruder, kneader, Banbury mixer, reciprocating kneader (BUSS KNEADER), roll kneader, etc. A polar group-containing olefin copolymer (A ′) and an olefin-based resin (C), and other components to be added as required in a suitable good solvent (for example, hexane, heptane, decane, In a solvent such as cyclohexane and xylene, and then the solvent is removed.

(3) Other components In the olefin resin composition (D) according to the present invention, various resin modifiers and the like may be blended without departing from the spirit of the function of the composition of the present invention. Examples of the component include butadiene rubber, isobutylene rubber, isoprene rubber, natural rubber, nitrile rubber, and petroleum resin, and these may be used alone or in a mixture.

(4) Polar group-containing olefin copolymer (A ′)
The polar group-containing olefin copolymer (A ′) according to the present invention is a copolymer of ethylene and / or an α-olefin having 3 to 20 carbon atoms and an epoxy group-containing monomer. The molecular structure and production method of the polar group-containing olefin copolymer (A ′) are the polar group-containing olefin copolymer (A) and multi-component polar group-containing in the first and second inventions of the present invention. It is basically the same as the olefin copolymer (B).

(5) Structural unit amount of polar group-containing monomer The structural unit amount derived from the polar group-containing monomer in the polar group-containing olefin copolymer (A ′) according to the present invention is usually in the range of 20 to 0.001 mol%. The polar group-containing olefin copolymer of the present invention is necessarily selected from the range of preferably 15 to 0.01 mol%, more preferably 10 to 0.02 mol%, and more preferably 5 to 0.02 mol%. It is preferable that it exists in. If the amount of the structural unit derived from the polar group-containing monomer is less than this range, the adhesiveness with a different polar material is not sufficient, and if it exceeds this range, sufficient mechanical properties cannot be obtained. Furthermore, the polar group-containing monomer used may be used alone or in combination of two or more.

(6) Weight average molecular weight (Mw) of polar group-containing olefin copolymer (A ′)
The weight average molecular weight (Mw) of the polar group-containing olefin copolymer (A ′) according to the present invention is usually 1,000 to 2,000,000, preferably 10,000 to 1,500,000, more preferably. Desirably, it is in the range of 20,000 to 1,000,000, preferably 31,000 to 800,000, more preferably 33,000 to 800,000. When Mw is less than 1,000, physical properties such as mechanical strength and impact resistance are not sufficient, and adhesion with a different material with high polarity is also inferior. When Mw exceeds 2,000,000, the melt viscosity becomes very high and molding processing becomes difficult.

(7) Olefin resin (C)
The olefin resin (C) according to the present invention is not particularly specified. The olefin-based resin (C) is an ethylene homopolymer or α 3 to 20 carbon atoms obtained by a high-pressure radical polymerization method, a high-medium-low pressure method using a Ziegler-type, Phillips type or single-site catalyst, and other known methods. A homopolymer obtained by polymerizing a monomer selected from olefins, or a copolymer obtained by copolymerizing two or more monomers selected from ethylene and / or an α-olefin having 3 to 20 carbon atoms Further, it can be selected from a copolymer of a monomer selected from ethylene and / or an α-olefin having 3 to 20 carbon atoms and a vinyl monomer containing a polar group. Among these, an ethylene homopolymer, a copolymer of ethylene and an α-olefin having 3 to 20 carbon atoms, or a copolymer of ethylene and a vinyl monomer containing a polar group is preferable.

The homopolymer according to the present invention is obtained by polymerizing only one type of monomer selected from ethylene or an α-olefin having 3 to 20 carbon atoms. More preferred homopolymers are ethylene homopolymers, propylene homopolymers, 1-butene homopolymers, 1-hexene homopolymers, 1-octene homopolymers, 1-dodecene homopolymers, and the like. Are ethylene homopolymer and propylene homopolymer.

The olefin copolymer according to the present invention is a monomer selected from ethylene, an α-olefin having 3 to 20 carbon atoms, a cyclic olefin, other vinyl monomers not containing a polar group, and vinyl monomers containing a polar group. It is a copolymer obtained by polymerizing two or more kinds, and is an olefin copolymer containing at least one monomer selected from ethylene or an α-olefin having 3 to 20 carbon atoms. . Two or more types of monomers may be used for the polymerization. Preferred as the olefin copolymer is a copolymer of ethylene and one or more α-olefins selected from α-olefins having 3 to 20 carbon atoms, and one or more types selected from ethylene and cyclic olefins. It is a copolymer with a cyclic olefin. More preferred is a copolymer of ethylene and one or more α-olefins selected from propylene, 1-butene, 1-hexene and 1-octene, and a copolymer of ethylene and norbornene. .

Examples of the cyclic olefin according to the present invention include monocyclic olefins such as cyclohexene and cyclooctene, norbornene, norbornadiene, dicyclopentadiene, dihydrodicyclopentadiene, tetracyclododecene, tricyclopentadiene, dihydrotricyclopentadiene, and tetracyclopentadiene. And polycyclic olefins such as dihydrotetracyclopentadiene, and substituted products in which a functional group is bonded to these olefins. Especially, norbornene is mentioned as a preferable cyclic olefin. In general, an olefin copolymer obtained by copolymerization of norbornene has low hygroscopicity because the main chain skeleton has an alicyclic structure, and the addition polymer also has excellent heat resistance.

The monomer that does not contain a polar group according to the present invention is a monomer that has one or more carbon-carbon double bonds in the molecular structure, and the elements constituting the molecule are carbon and hydrogen. Excluding the above ethylene and α-olefin, examples include diene, triene, aromatic vinyl monomer, and the like, and preferred are butadiene, isoprene, styrene, vinylcyclohexane, and vinylnorbornene.

Although the monomer containing the polar group according to the present invention is not limited, for example, carboxylic acid group or acid anhydride group-containing monomer (a), ester group-containing monomer (b), hydroxyl group-containing monomer (c), amino group-containing monomer It can be selected from (d) and a silane group-containing monomer (e).

Examples of the carboxylic acid group or acid anhydride group-containing monomer (a) include α, β-unsaturated dicarboxylic acids such as maleic acid, fumaric acid, citraconic acid and itaconic acid, or anhydrides thereof, acrylic acid, methacrylic acid, and furanic acid. , Unsaturated monocarboxylic acids such as crotonic acid, vinyl acetate and pentenoic acid. Examples of the ester group-containing monomer (b) include methyl (meth) acrylate, ethyl (meth) acrylate, (n-, iso-) propyl (meth) acrylate, (n-, iso-, tert-) butyl (meth) acrylate Among them, methyl acrylate is particularly preferable. Examples of the hydroxyl group-containing monomer (c) include hydroxyethyl (meth) acrylate and 2-hydroxypropyl (meth) acrylate. Examples of the amino group-containing monomer (d) include aminoethyl (meth) acrylate, dimethylaminoethyl (meth) acrylate, diethylaminoethyl (meth) acrylate, cyclohexylaminoethyl (meth) acrylate, and the like. Examples of the silane group-containing monomer (e) include unsaturated silane compounds such as vinyltrimethoxysilane, vinyltriethoxysilane, vinyltriacetylsilane, and vinyltrichlorosilane.

(8) Manufacturing method of olefin resin (C) The manufacturing method of the olefin resin (C) according to the present invention is not limited. The low pressure method and other known methods can be exemplified.

(9) Melt flow rate (MFR) of olefin resin (C)
The MFR of the olefin resin (C) is measured under the condition of a load of 2.16 kg at a temperature of 190 ° C. based on the condition D in accordance with JIS K7120 (1999), and usually 0.01 to 100 g / 10 minutes, preferably It is desirable that the amount be in the range of 0.1 to 80 g / 10 minutes, more preferably 0.3 to 50 g / 10 minutes. When the MFR exceeds 100 g / 10 min, the physical properties such as mechanical strength and impact resistance are not sufficient, and when it is less than 0.01 g / 10 min, the melt viscosity becomes very high and the molding process becomes difficult.

(10) Density of Olefin Resin (C) The density of the olefin resin (C) is measured in accordance with JIS K7112-A method (1999), and is usually 0.840 to 1.20 g / cm ³ , preferably 0.850 ~ 0.990g / cm ^3, more preferably 0.860 ~ 0.980g / cm ^3, it is desirable preferably in the range of 0.870 ~ 0.970g / cm ^3. When the density exceeds 1.20 g / cm ³ , physical properties such as impact resistance are not sufficient, and when it is less than 0.840 g / cm ³ , the heat resistance is inferior.

[V] Olefin resin composition (D ′)
(1) Olefin Resin Composition (D ′) The olefin resin composition (D ′) further increases the density range and melting point range of the olefin resin (C) contained in the olefin resin composition (D). By limiting, it becomes possible to produce an olefin-based resin composition in which sufficient adhesion with different materials and heat resistance are balanced. That is, the olefin resin composition (D ′) is basically different from the olefin resin composition (D) except that the density range and melting point range of the olefin resin (C) contained as a component are different. Are the same.

(2) Density of the olefin resin (C) contained in the olefin resin composition (D ′) The density of the olefin resin (C) contained in the olefin resin composition (D ′) is determined according to JIS K7112-A (1999), preferably 0.890 to 1.20 g / cm ³ , more preferably 0.895 to 0.990 g / cm ³ , and 0.900 to 0.000. More preferably, it is 980 g / cm ³ . If it is lower than this range, the heat resistance is not sufficient, and if it is higher than this range, the impact resistance is poor.

(3) Melting point of olefin resin (C) contained in olefin resin composition (D ′) Melting point of olefin resin (C) contained in olefin resin composition (D ′) is a differential scanning calorimeter. Indicated by the maximum peak temperature of the endothermic curve measured by (DSC).
The olefin resin (C) contained in the olefin resin composition (D ′) includes a crystalline one and an amorphous one. In the case of crystallinity, the melting point can be measured by the above-mentioned melting point measurement method, but the amorphous one may not show the melting point. Since the polar group-containing olefin copolymer (A ′) according to the present invention is a crystalline resin, the olefin resin (C) also preferably has a melting point, but the olefin resin composition (D ′) is preferable. An amorphous olefin resin may be used as long as it exhibits a melting point range and adhesiveness. A preferable melting point range of the olefin resin (C) contained in the olefin resin composition (D ′) whose melting point is measured by the melting point measurement method is 90 ° C. to 170 ° C., and is a range of 100 ° C. to 155 ° C. The range of 110 ° C. to 140 ° C. is particularly preferable. If it is lower than this range, the heat resistance is not sufficient, and if it is higher than this range, the adhesiveness is poor.

(4) Melting point of olefin-based resin composition (D ′) The melting point of olefin-based resin composition (D ′) according to the present invention is indicated by the maximum peak temperature of the endothermic curve measured by a differential scanning calorimeter (DSC). It is.
The melting point of the olefin resin composition (D ′) is preferably 119 ° C. to 170 ° C., more preferably 119.5 ° C. to 155 ° C., and most preferably 120 ° C. to 140 ° C. If it is lower than this range, the heat resistance is not sufficient, and if it is higher than this range, the adhesiveness is poor.

(5) Heat of fusion ΔH of olefin resin composition (D ′)
The heat of fusion ΔH of the olefin resin composition (D ′) according to the present invention is measured in accordance with JIS K7122 (1987). That is, it is measured from the peak area of the endothermic curve measured by a differential scanning calorimeter (DSC). The heat of fusion ΔH is preferably in the range of 80 to 300 J / g, more preferably in the range of 85 to 290 J / g, and even more preferably in the range of 100 to 280 J / g. If it is lower than this range, the heat resistance is not sufficient, and if it is higher than this range, the adhesiveness is poor.

[VI] Olefin resin composition (D ")
(1) About Olefin Resin Composition (D ″) The olefin resin composition (D ″) further increases the density range and melting point range of the olefin resin (C) contained in the olefin resin composition (D). By limiting, the adhesion performance with dissimilar materials can be drastically improved and the epoxy group content in the olefin resin composition can be kept low. The possibility of impairing the mechanical properties, impact resistance, moldability, and the like associated with the improvement of the process can be avoided. That is, the olefin resin composition (D ″) is basically different from the olefin resin composition (D) except that the density range and melting point range of the olefin resin (C) contained as a component are different. Are identical.

(2) Density of olefin resin (C) contained in olefin resin composition (D ″) The density of olefin resin (C) according to the present invention is based on JIS K7112-A method (1999). 0.840 to 0.932 g / cm ³ is preferable, 0.840 to 0.928 g / cm ³ is more preferable, 0.840 to 0.922 g / cm ³ is still more preferable, and 0.840 to 0.83. 915 g / cm ³ is preferable, and 0.840 to 0.910 g / cm ³ is more preferable. If it is higher than this range, the adhesiveness will be inferior. As the olefin resin (C) is more flexible, that is, as the density is lower, the adhesiveness is improved. For the above reasons, the lower limit is not particularly limited. However, when polyethylene is assumed, it is difficult to produce an olefin resin having a density lower than 0.840 g / cm ³ .

(3) Melting point of olefin resin (C) contained in olefin resin composition (D ″) Melting point of olefin resin (C) contained in olefin resin composition (D ″) is a differential scanning calorimeter. Indicated by the maximum peak temperature of the endothermic curve measured by (DSC).
The melting point is preferably 30 to 124 ° C., more preferably 30 to 120 ° C., further preferably 30 to 115 ° C., preferably 30 to 110 ° C., and more preferably 30 to 100 ° C. When it is higher than this range, the adhesiveness improves as the olefinic resin (C) contained in the olefinic resin composition (D ″) that is inferior in adhesiveness is softer, that is, as the melting point is lower. Thus, the lower limit is not particularly limited, but when polyethylene is assumed, it is difficult to produce an olefin resin having a melting point lower than 30 ° C.
Further, since the heat of fusion ΔH (J / g) calculated from the peak area of the endothermic curve of DSC measurement depends on the crystallinity of the olefin resin, ΔH decreases as the crystallinity of the olefin resin decreases. However, it is difficult to observe the endothermic curve peak. That is, in the case of an olefin resin having a low crystallinity, the melting point defined by the maximum peak temperature of the endothermic curve may not be measured. The gist of the present invention is to blend flexible olefinic resins, and even if the melting point cannot be defined, such a resin may be used as long as it is a flexible resin with low crystallinity. The amount of heat of fusion ΔH (J / g) is a value calculated from the peak area of the endothermic curve obtained when the DSC measurement shows the heat flow (mW) on the vertical axis and the temperature (° C.) on the horizontal axis. The total amount of heat energy absorbed when the crystals contained therein are melted is expressed in J units.

[VII] Additives The polar group-containing olefin copolymer (A), multi-component polar group-containing olefin copolymer (B), olefin resin composition (D), olefin resin composition (D ′) according to the present invention. ), The olefin-based resin composition (D ″), an antioxidant, an ultraviolet absorber, a lubricant, an antistatic agent, a colorant, a pigment, a crosslinking agent, a foaming agent, without departing from the gist of the present invention. You may mix | blend additives, such as a nucleating agent, a flame retardant, a electrically conductive material, and a filler.

[VIII] Adhesive Material Polar group-containing olefin copolymer (A), multi-component polar group-containing olefin copolymer (B), olefin resin composition (D), olefin resin composition (D ′ ), The olefin-based resin composition (D ″) exhibited high adhesiveness with other base materials and made it possible to produce industrially useful laminates. The data of the examples and the comparison of the examples and comparative examples are demonstrated.

[IX] Laminate and Composite Product (1) Material of Laminate The laminate according to the present invention comprises a polar group-containing olefin copolymer (A), a multi-component polar group-containing olefin copolymer (B), and an olefinic material. A laminate comprising a layer composed of any one of a resin composition (D), an olefinic resin composition (D ′), and an olefinic resin composition (D ″) and a base material layer, and a specific example of the base material Examples include polyethylene resins such as high density polyethylene, medium density polyethylene, low density polyethylene, ethylene-vinyl acetate copolymer, ethylene-acrylic acid ester copolymer, ionomer, homopolypropylene resin, propylene and other α- Polypropylene resins such as copolymers with olefins, olefin resins such as poly-1-butene and poly-4-methyl-1-pentene, polyvinyl chloride, poly Vinyl polymers such as vinylidene chloride, polystyrene, polyacrylate, polyacrylonitrile, nylon 6, nylon 66, nylon 10, nylon 11, nylon 12, nylon 610, polyamide resins such as polymetaxylylene adipamide, polyethylene terephthalate, Polyester resins such as polyethylene terephthalate / isophthalate, polybutylene terephthalate, polylactic acid, polybutylene succinate, aromatic polyester, polyvinyl alcohol, ethylene / vinyl alcohol copolymer, polycarbonate resin, adhesive fluororesin, phenol resin, Thermosetting resins such as epoxy resin, urea resin, melamine resin, urea resin, alkyd resin, unsaturated polyester, polyurethane, thermosetting polyimide, cellophane Thermoplastic resin film or sheet having the ability to form a film such as a cellulose polymer (stretched product or printed material thereof), metal foil or metal plate such as aluminum, iron, copper, or an alloy based on these, silica Vapor-deposited plastic film, alumina-deposited plastic film and other inorganic oxide vapor-deposited films, gold, silver, aluminum and other metal-deposited films, etc., fine paper, kraft paper, paperboard, glassine paper, Examples thereof include papers such as synthetic paper, cellophane, woven fabric, and non-woven fabric.

The base material layer according to the present invention can be appropriately selected depending on the use and the type of the package. For example, if the package is a perishable food, such as polyamide, polyvinylidene chloride, ethylene-vinyl alcohol copolymer (EVOH), polyvinyl alcohol, polyester, it has transparency, rigidity and gas permeation resistance. An excellent resin can be used. Further, when the package is a confectionery or a fiber, it is preferable to use polypropylene or the like having good transparency, rigidity, and water permeation resistance. When adapting to fuel tanks of automobiles, tubes, hoses and pipes through which fuel passes, resins having excellent fuel permeation prevention performance such as EVOH, polyamides and fluororesins can be used.
Examples of the barrier resin include polyamide resin, polyester resin, EVOH, polyvinylidene chloride resin, polycarbonate resin, stretched polypropylene (OPP), stretched polyester (OPET), stretched polyamide, alumina vapor deposition film, silica vapor deposition film, and the like. Examples include metal, inorganic oxide vapor deposition films, metal vapor deposition films such as aluminum vapor deposition, and metal foils.

(2) Use of laminated body The laminated body which concerns on this invention is suitable as a packaging material of foodstuffs, for example. Specific examples of food include snacks such as potato chips, confectionery such as biscuits, rice crackers and chocolates, powder seasonings such as powdered soup, foods such as shavings and smoked foods, and the like. In addition, the pouch container can be formed by facing the ethylene copolymer layer surfaces of the laminate and heat-sealing at least a part thereof. Specifically, for example, water packaging, general bags, liquid soup bags, liquid paper containers, laminating fabrics, special shaped liquid packaging bags (standing pouches, etc.), standard bags, heavy bags, semi-heavy bags, wrap films, It is suitably used for sugar bags, oil packaging bags, various packaging containers for food packaging, infusion bags, and the like.

(3) Manufacture of Laminate As a processing method of the laminate according to the present invention, normal press molding, air-cooled inflation molding, air-cooled two-stage cooling inflation molding, high-speed inflation molding, flat die molding (T-die molding), water cooling Conventionally known methods such as extrusion molding such as inflation molding, laminating methods such as extrusion laminating, sand laminating, and dry laminating, blow molding, pressure molding, injection molding, and rotational molding may be used.

(4) Laminate Laminate The laminate laminate according to the present invention is a laminate that can be produced by a known laminating method such as extrusion laminating, sand laminating, or dry laminating. Polar group-containing olefin copolymer (A), multi-component polar group-containing olefin copolymer (B), olefin resin composition (D), olefin resin composition (D ′), olefin resin composition of the present invention It is a laminate that can be manufactured by laminating a laminate material containing any of the product (D ″) and at least one base material layer.

(5) Extruded product The extruded product according to the present invention is a polar group-containing olefin copolymer (A), a multi-component polar group-containing olefin copolymer (B), an olefin resin composition ( D), an olefin-based resin composition (D ′), or an olefin-based resin composition (D ″) is an extrusion-molded product formed by extrusion molding.

(6) Multilayer coextrusion molded product The multilayer coextrusion molded product according to the present invention is a multilayer coextrusion molded product that can be molded by a known multilayer coextrusion molding, and the polar group-containing olefin copolymer of the present invention. One of the coalescence (A), the multi-component polar group-containing olefin copolymer (B), the olefin resin composition (D), the olefin resin composition (D ′), and the olefin resin composition (D ″). It is a multilayer coextrusion molded product including at least a layer formed.

(7) Multilayer film The multilayer film according to the present invention is a multilayer film that can be produced by a known multilayer film molding method. Layer containing olefin copolymer (B), olefin resin composition (D), olefin resin composition (D ′), olefin resin composition (D ″) Is a multilayer film containing at least.

(8) Multilayer Blow Molded Product The multilayer blow molded product according to the present invention is a multilayer blow molded product that can be manufactured by a known multilayer blow molding, and the polar group-containing olefin copolymer (A) of the present invention. A multi-component polar group-containing olefin copolymer (B), an olefin resin composition (D), an olefin resin composition (D ′), or an olefin resin composition (D ″). A multilayer blow-molded product including at least a layer and a base material layer.

(9) Multilayer tubular molded article The multilayer tubular molded article according to the present invention is a multilayer tubular molded article that can be molded by a known multilayer tubular molding method, and the polar group-containing olefin copolymer (A ), A multi-component polar group-containing olefin copolymer (B), an olefin resin composition (D), an olefin resin composition (D ′), or an olefin resin composition (D ″). A multilayer tubular molded article including at least a layer and a base material layer.

(10) Multilayer sheet The multilayer sheet according to the present invention is a multilayer sheet that can be produced by known multilayer sheet molding, and includes the polar group-containing olefin copolymer (A) of the present invention and a multi-component polar group-containing material. A layer comprising any one of the olefin copolymer (B), the olefin resin composition (D), the olefin resin composition (D ′), and the olefin resin composition (D ″), and a base material layer; Is a multilayer sheet containing at least

(11) Injection-molded article The injection-molded article according to the present invention is a polar group-containing olefin copolymer (A), a multi-component polar group-containing olefin copolymer (B), an olefin resin composition ( D), an injection-molded article obtained by molding any one of the olefin-based resin composition (D ′) and the olefin-based resin composition (D ″). Known to produce an injection-molded article according to the present invention. The method can be used.

(12) Multilayer injection-molded article The multilayer injection-molded article according to the present invention is the polar group-containing olefin copolymer (A), multi-component polar group-containing olefin copolymer (B), or olefin resin composition of the present invention. (D), including at least a layer containing any of the olefin-based resin composition (D ′) and the olefin-based resin composition (D ″), and by multilayering a plurality of layers using injection molding. A multilayer injection molded article that can be manufactured as long as two or more kinds of materials are formed into a multilayered structure. Can be molded.

(13) Coated metal member The coated metal member according to the present invention is a metal containing a polar group-containing olefin copolymer (A), a multi-component polar group-containing olefin copolymer (B), and an olefin resin composition (D). The coated metal member can be produced by coating any one of the olefin resin composition (D ′) and the olefin resin composition (D ″) as a metal coating material and coating the metal coating material on a metal.

In the following, the present invention will be described in detail by way of examples and comparative examples, and the rationality and significance of the configuration of the present invention and the prior art by comparing the data of each preferred example and the comparison between each example and each comparative example. Demonstrate excellence against The physical property test method of the polar group-containing olefin copolymer produced in the present invention and the test method of the obtained laminate are as follows.

[Experimental Example 1] Evaluation of polar group-containing olefin copolymer (1) Amount of polar group-containing structural unit in polar group-containing olefin copolymer The amount of polar group-containing structural unit in polar group-containing olefin copolymer is ¹ It was determined using an H-NMR spectrum. Details are described above.

(2) Weight average molecular weight (Mw) and molecular weight distribution parameter (Mw / Mn)
The weight average molecular weight (Mw) was determined by gel permeation chromatography (GPC). Further, the molecular weight distribution parameter (Mw / Mn) was further calculated by the number average molecular weight (Mn) by gel permeation chromatography (GPC), and calculated by the ratio of Mw to Mn, Mw / Mn. Details are described above.

(3) Melting | fusing point Melting | fusing point is shown by the peak temperature of the endothermic curve measured with the differential scanning calorimeter (DSC). DSC (DSC7020) manufactured by SII Nano Technology Co., Ltd. was used for measurement, and the measurement was performed under the following measurement conditions.
About 5.0 mg of the sample was packed in an aluminum pan, increased to 200 ° C. at 10 ° C./min, held at 200 ° C. for 5 minutes, and then cooled to 30 ° C. at 10 ° C./min. After maintaining at 30 ° C. for 5 minutes, the maximum peak temperature in the absorption curve when the temperature was raised again at 10 ° C./min was taken as the melting point.

(4) Adhesive strength Adhesive strength is obtained by preparing a measurement sample processed into a press plate and various substrate films, making a laminate by superimposing the two types and hot pressing them, and performing a peel test. It was measured. The preparation method / measurement method of each step will be described in order.

[1] Preparation method of press plate of measurement sample The measurement sample is put into a hot press mold having dimensions of 50 mm x 60 mm and a thickness of 0.5 mm, preheated for 5 minutes in a hot press machine having a surface temperature of 180 ° C, and then pressed. The residual gas in the molten resin was degassed by repeating the pressure reduction, and further pressurized at 4.9 MPa and held for 5 minutes. Then, it transferred to the press machine with a surface temperature of 25 degreeC, it cooled by hold | maintaining for 3 minutes with the pressure of 4.9 Mpa, and produced the press plate about 0.5 mm in thickness.

[2] Preparation method of EVOH film Using a multi-layer T-die molding machine, after forming a two-layer three-layer film with EVOH as the central layer and LLDPE as both outer layers, the LLDPE as the outer layer is peeled off to form EVOH having a thickness of 100 μm A single layer film was prepared. The film forming conditions are as follows.
Molding machine: 2 types 3 layers T die
Molding temperature: 200 ° C
Layer structure: LLDPE / EVOH / LLDPE
Film thickness: 300 μm (100 μm / 100 μm / 100 μm)
Outer layer: LLDPE (manufactured by Nippon Polyethylene Co., Ltd. Brand: Novatec UF943) MFR = 2.0 g / 10 min, density = 0.937 / cm ³
Middle layer: EVOH (Kuraray Co., Ltd. Brand: EVAL F101B)

[3] Preparation Method of Polyamide Film Using a multi-layer T-die molding machine, after forming a two-layer, three-layer multilayer film in which the center layer is polyamide and both outer layers are LLDPE, the outer layer LLDPE is peeled off to form a polyamide having a thickness of 100 μm. A single layer film was prepared. The film forming conditions are as follows.
Molding machine: 2 types 3 layers T die
Molding temperature: 250 ° C
Layer structure: LLDPE / EVOH / LLDPE
Film thickness: 300 μm (100 μm / 100 μm / 100 μm)
Outer layer: LLDPE (manufactured by Nippon Polyethylene Co., Ltd. Brand: Novatec UF943) MFR = 2.0 g / 10 min, density = 0.937 / cm ³
Intermediate layer: Polyamide (made by Toray Industries, Inc. Brand: Amilan CM1021FS)

[4] Polyester film preparation method Using a multi-layer T-die molding machine, after forming a two-layer, three-layer multilayer film in which the central layer is polyester and both outer layers are LLDPE, the outer layer LLDPE is peeled off, and the polyester having a thickness of 100 μm A single layer film was prepared. The film forming conditions are as follows.
Molding machine: 2 types 3 layers T die
Molding temperature: 250 ° C
Layer structure: LLDPE / EVOH / LLDPE
Film thickness: 300 μm (100 μm / 100 μm / 100 μm)
Outer layer: LLDPE (manufactured by Nippon Polyethylene Co., Ltd. Brand: Novatec UF943) MFR = 2.0 g / 10 min, density = 0.937 / cm ³
Intermediate layer: Polyethylene terephthalate (Mitsubishi Chemical Co., Ltd. Brand: Novapex IG229Z)

[5] Preparation method of fluororesin film Using a multi-layer T-die molding machine, after forming a two-layer, three-layer multilayer film in which the central layer is fluororesin and both outer layers are LLDPE, the outer layer LLDPE is peeled off to obtain a thickness of 100 μm A fluororesin single layer film was prepared. The film forming conditions are as follows.
Molding machine: 2 types 3 layers T die
Molding temperature: 230 ° C
Layer structure: LLDPE / EVOH / LLDPE
Film thickness: 300 μm (100 μm / 100 μm / 100 μm)
Outer layer: LLDPE (manufactured by Nippon Polyethylene Co., Ltd. Brand: Novatec UF943) MFR = 2.0 g / 10 min, density = 0.937 / cm ³
Intermediate layer: Fluororesin (Daikin Industries, Ltd. Brand: NEOFLON EFEP RP-5000)

[6] Preparation method of laminate of EVOH film and measurement sample The measurement sample press plate obtained by the press plate preparation method and the EVOH film obtained by the EVOH film preparation method are 50 mm x 60 mm in size. The cut pieces were stacked and placed in a hot press mold having dimensions of 50 mm × 60 mm and a thickness of 0.5 mm, and pressed at 4.9 MPa for 3 minutes using a hot press machine having a surface temperature of 200 ° C. Then, it moved to the press machine with the surface temperature of 25 degreeC, it cooled by hold | maintaining for 3 minutes with the pressure of 4.9 MPa, and the laminated body of the press board of a measurement sample and EVOH was prepared.

[7] Preparation method of laminate of polyamide film and measurement sample The measurement sample press plate obtained by the above press plate preparation method and the polyamide film obtained by the above polyamide film preparation method have dimensions of 50 mm x 60 mm. The cut pieces were stacked and placed in a hot press mold having dimensions of 50 mm × 60 mm and a thickness of 0.5 mm, and pressed at 4.9 MPa for 5 minutes using a hot press machine having a surface temperature of 250 ° C. Then, it transferred to the press machine with a surface temperature of 25 degreeC, it cooled by hold | maintaining for 3 minutes with the pressure of 4.9 Mpa, and the laminated body of the press board and polyamide of the measurement sample was prepared.

[8] Preparation Method of Laminate of Polyester Film and Measurement Sample A measurement sample press plate obtained by the press plate preparation method and a polyester film obtained by the polyester film preparation method have dimensions of 50 mm × 60 mm. The cut pieces were superposed, put into a hot press mold having dimensions of 50 mm × 60 mm and a thickness of 0.5 mm, and pressurized at 4.9 MPa for 3 minutes using a hot press machine having a surface temperature of 200 ° C. Then, it transferred to the press machine with a surface temperature of 25 degreeC, it cooled by hold | maintaining for 3 minutes with the pressure of 4.9 Mpa, and the laminated body of the press board and polyester of a measurement sample was prepared.

[9] Preparation method of laminate of fluororesin film and measurement sample The press plate of the measurement sample obtained by the above press plate preparation method and the fluororesin film obtained by the above preparation method of the fluororesin film are 50 mm × The cut pieces of 60 mm are stacked, placed in a hot press mold with dimensions of 50 mm × 60 mm and thickness of 0.5 mm, and pressed at 4.9 MPa for 3 minutes using a hot press with a surface temperature of 200 ° C. . Then, it transferred to the press machine with a surface temperature of 25 degreeC, it cooled by hold | maintaining for 3 minutes with the pressure of 4.9 MPa, and the laminated body of the press board of a measurement sample and a fluororesin was prepared.

[10] Method for measuring adhesive strength of laminate The laminate obtained by the method for preparing a laminate is cut into a width of 10 mm, and the speed is 50 mm / min using a Tensilon (Toyo Seiki Co., Ltd.) tensile tester. The adhesive strength was measured by T-peeling. The unit of adhesive strength is indicated by gf / 10 mm. When the adhesive strength is very strong, the measurement sample layer or the base material layer yields and breaks during the peel test. This is a phenomenon that occurs because the adhesive strength of the laminate is higher than the lower one of the tensile break strength of the measurement sample layer or the base material layer, and the adhesiveness is very high. I can judge. When the adhesive strength cannot be measured due to this phenomenon, the result of the adhesive strength measurement in each example is described as “non-peelable”, and it is determined that the adhesive strength is higher than that measured for the numerical value of the adhesive strength.

(5) Chemical resistance [1] Method for preparing press plate of measurement sample The measurement sample is placed in a hot press mold having dimensions of 50 mm × 60 mm and a thickness of 1 mm, and preheated for 5 minutes in a hot press machine having a surface temperature of 180 ° C. Thereafter, the residual gas in the molten resin was degassed by repeating pressurization and decompression, and further pressurized at 4.9 MPa and held for 5 minutes. Then, it moved to the press machine with a surface temperature of 25 degreeC, it cooled by hold | maintaining for 3 minutes with the pressure of 4.9 Mpa, and produced the press plate of the measurement sample whose thickness is about 0.9 mm.

[2] Chemical Resistance Evaluation Method The measurement sample press plate prepared by the measurement sample press plate preparation method was cut into a width of 10 mm to prepare a chemical resistance evaluation test piece. This test piece for evaluation was placed in a pressure vessel, and a mixed solution of three kinds of isooctane 455 ml / toluene 455 ml / ethanol 90 ml was further added. The pressure vessel was placed in an oven adjusted to 60 ° C., and after 24 hours, the test specimen for evaluation was taken out and air-dried in a draft for another 24 hours.
When the test specimen for evaluation after air drying did not retain the original shape, the chemical resistance was judged as “X”, and when the original shape was maintained, the chemical resistance was judged as “◯”.

(6) Measurement of phase angle δ (G * = 0.1 MPa) at the absolute value G * = 0.1 MPa of the complex elastic modulus Place the sample in a mold for heating press with a thickness of 1.0 mm, and heat at a surface temperature of 180 ° C. After preheating in a press for 5 minutes, the residual gas in the molten resin was degassed by repeating pressurization and decompression, and further pressurized at 4.9 MPa and held for 5 minutes. Then, it transferred to the press machine with a surface temperature of 25 degreeC, it cooled by hold | maintaining for 3 minutes with the pressure of 4.9 MPa, and the press plate which consists of a sample about 1.0 mm thick was created. A press plate made of a sample processed into a circular shape with a diameter of 25 mm is used as a sample, and a dynamic viscoelasticity is measured using a RHEometrics ARES rotary rheometer as a measuring device for dynamic viscoelasticity under a nitrogen atmosphere under the following conditions. It was measured.
・ Plate: φ25mm parallel plate ・ Temperature: 160 ℃
・ Distortion amount: 10%
Measurement angular frequency range: 1.0 × 10 ⁻² to 1.0 × 10 ² rad / s
・ Measurement interval: 5 points / decade
The phase angle δ is plotted against the common logarithm log G * of the absolute value G * (Pa) of the complex elastic modulus, and the value of δ (degree) at the point corresponding to log G * = 5.0 is set to δ (G * = 0). .1 MPa). When there was no point corresponding to log G * = 5.0 among the measurement points, the δ value at log G * = 5.0 was obtained by linear interpolation using two points around log G * = 5.0. Further, when all of the measurement points were logG * <5, the values were obtained by extrapolating the δ value at logG * = 5.0 with a quadratic curve using the values of three points from the larger logG * value.

(7) Aluminum (Al) amount The amount of aluminum (Al) contained in the polar group-containing olefin copolymer is the same as the amount of aluminum (Al) contained in the alkylaluminum subjected to the polymerization. It can be determined by a method of calculating as a value divided by the yield of the copolymer and a method of measuring by fluorescent X-ray analysis.

[1] Method of calculating from alkyl aluminum polymerization addition amount Specifically, the calculation was performed by the following calculation formula.
Unit of aluminum (Al) content: μg _Al / g
(Μg _Al / g means that the amount of aluminum (Al) contained in 1 g of the polar group-containing olefin copolymer is expressed in μg.)
μg _Al = n × Mw (Al) × 10 ³ (μg)
n: Amount of alkylaluminum used for polymerization (mmol)
Mw (Al): Molecular weight of aluminum (Al) element (26.9 g / mol)

[2] Method of measuring by fluorescent X-ray analysis The amount of aluminum (Al) contained in the polar group-containing olefin copolymer was determined using fluorescent X-ray analysis. Details are described above.

Example 1-1
Drent type ligand: Synthesis of (2-isopropyl-phenyl) (2′-methoxy-phenyl) (2 ″ -sulfonyl-phenyl) phosphine (I) benzenesulfonic anhydride (2 g, 12.6 mmol) in tetrahydrofuran (2 20 mL), normal butyllithium hexane solution (2.5 M, 10 mL, 25.3 mmol) was slowly added dropwise at 0 ° C., and the mixture was stirred for 1 hour while raising the temperature to room temperature. The reaction solution was cooled to −78 ° C., phosphorus trichloride (1.0 mL, 12.6 mmol) was added, and the mixture was stirred for 2 hours (reaction solution A).
Magnesium was dispersed in tetrahydrofuran (20 mL), 1-bromo-2-methoxybenzene (2.3 g, 12.6 mmol) was added, and the mixture was stirred at room temperature for 3 hours. This solution was added dropwise to the reaction solution A at −78 ° C. and stirred for 1 hour (reaction solution B).
To a solution of 1-bromo-2-isopropylbenzene (2.5 g, 12.6 mmol) in diethyl ether (20 mL), slowly add a normal butyl lithium hexane solution (2.5 M, 5.0 mL, 12.6 mmol) at −30 ° C. And stirred at room temperature for 2 hours. This solution was added dropwise to the previous reaction solution B at −78 ° C. and stirred overnight at room temperature. LC-MS purity 60%.
Water (50 mL) was added, acidified with hydrochloric acid (PH <3), extracted with methylene chloride (100 mL), dried over sodium sulfate, and the solvent was evaporated. By recrystallization from methanol, 1.1 g of white target product (I) was obtained. Yield 22%.
¹ H NMR (CDCl ₃ , ppm): 8.34 (t, J = 6.0 Hz, 1H), 7.7-7.6 (m, 3H), 7.50 (t, J = 6.4 Hz, 1H), 7.39 (m, 1H), 7.23 (m, 1H), 7.1-6.9 (m, 5H), 3.75 (s, 3H), 3.05 (m, 1H) ), 1.15 (d, J = 6.8 Hz, 3H), 1.04 (d, J = 6.4 Hz, 3H). ³¹ P NMR (CDCl ₃ , ppm): −10.5.

Formation of Complex Formation of Complex In a 30 mL flask thoroughly purged with nitrogen, 100 μmol of palladium bisdibenzylideneacetone and phosphorus sulfonic acid ligand (I) were weighed and dehydrated toluene (10 mL) was added. The catalyst slurry was prepared by processing for 10 minutes with a sonic vibrator.

Copolymerization of ethylene and 1,2-epoxy-9-decene After substituting an autoclave with a stirring blade having an inner volume of 2.4 liters with a stirring blade with purified nitrogen, dry toluene (1.0 liter) and 1,2-epoxy-9 -Charged 36 ml (0.2 mol) of decene. The temperature of the autoclave was raised to 100 ° C. while stirring, nitrogen was supplied to 0.3 MPa, and then ethylene was supplied to 1.3 MPa so that the ethylene partial pressure became 1 MPa. After completion of pressure adjustment, 150 μmol of a transition metal complex (I-Pd complex) was injected with nitrogen to initiate copolymerization. During the reaction, the temperature was kept at 100 ° C., ethylene was continuously supplied so as to maintain the pressure, polymerized for 120 minutes, and then cooled and depressurized to stop the reaction. The reaction solution was poured into 1 liter of acetone to precipitate a polymer, and then collected by filtration, washing, and further dried under reduced pressure at 60 ° C. until a constant weight was obtained.
The polymerization conditions and polymerization results are shown in Table 1, and the physical property measurement results are shown in Table 2. Note that “ND” in Table 2 means unmeasured (the same applies in the following description). In Table 1, the polymerization activity represents the copolymer yield (g) per 1 mol of the complex used for the polymerization. The polymerization activity was calculated on the assumption that the ligand and palladium bisdibenzylideneacetone reacted 1: 1 to form a palladium complex.

[Example 1-2]
Copolymerization of ethylene with 4-vinyl-1,2-epoxycyclohexane Using 20.9 ml (0.2 mol) of 4-vinyl-1,2-epoxycyclohexane as a polar group-containing comonomer, the amount of transition metal complex Was performed in the same manner as in Example 1-1 except that the polymerization pressure was 2.3 MPa, the polymerization temperature was 100 ° C., and the polymerization time was 240 minutes. The polymerization conditions and polymerization results are shown in Table 1, and the physical property measurement results are shown in Table 2.

Example 1-3
Copolymerization of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) Using 54 ml (0.3 mol) of 4-HBAGE as a polar group-containing comonomer, the amount of transition metal complex is 50 μmol, the polymerization temperature is 90 ° C., and the polymerization time is The same procedure as in Example 1-1 was performed except that the time was 70 minutes. The polymerization conditions and polymerization results are shown in Table 1, and the physical property measurement results are shown in Table 2.

[Example 1-4]
Synthesis of SHOP type ligand: B-27DM The following ligand B-27DM was obtained according to the method described in International Publication No. 2010/050256 (Synthesis Example 4).

Formation of Complex 112 mg (200 μmol) of the following B-27DM was weighed into a 50 ml eggplant-shaped flask sufficiently purged with nitrogen. Next, 56 mg (200 μmol) of bis-1,5-cyclooctadiene nickel (0) (hereinafter referred to as Ni (COD) 2) was weighed into a 50 ml eggplant type flask, dissolved in 20 ml of dry toluene, and 10 mmol / l. A Ni (COD) 2 toluene solution was prepared. The total amount of Ni (COD) 2-toluene solution (20 ml) obtained here was added to an eggplant-shaped flask containing B-27DM and stirred in a hot water bath at 40 ° C. for 30 minutes, whereby B-27DM and Ni (COD 20 ml of a 10 mmol / l solution of the reaction product of 2) was obtained.

Copolymerization of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) In an autoclave with a stirring blade having an internal volume of 2.4 liters, 1000 ml of dry toluene, 36.6 mg of tri-n-octylaluminum (TNOA) ( 0.1 mmol) and 2.7 ml (15 mmol) of 4-HBAGE were charged. The temperature of the autoclave was raised to 100 ° C. while stirring and nitrogen was supplied to 0.3 MPa, and then ethylene was supplied to a pressure of 2.8 MPa so that the ethylene partial pressure was 2.5 MPa. After the temperature and pressure were stabilized, 2.4 ml (24 μmol) of the previously prepared B-27DM-Ni complex solution was injected with nitrogen to initiate copolymerization. During the reaction, the temperature was kept at 100 ° C., and ethylene was continuously supplied so that the pressure was maintained. After polymerization for 80 minutes, the reaction was stopped by cooling and depressurization. The reaction solution was poured into 1 liter of acetone to precipitate the polymer, and then collected by filtration, washing, and further dried under reduced pressure at 60 ° C. until a constant weight was obtained. The polar group-containing monomer remaining in was removed, and finally 28 g of the polar group-containing olefin copolymer was recovered. The polymerization conditions and polymerization results are shown in Table 1, and the physical property measurement results are shown in Table 2. In Table 1, the polymerization activity represents the copolymer yield (g) per 1 mol of the complex used for the polymerization. The polymerization activity was calculated on the assumption that B-27DM and Ni (COD) 2 reacted one-on-one to form a nickel complex. Further, 4-HBAGE used for copolymerization was dehydrated with molecular sieve 3A.

[Examples 1-5 to 1-12]
Among the methods described in Example 1-4, the polarities of Examples 1-5 to 1-12 were changed by performing polymerization while changing the ligand amount, the polar group-containing monomer concentration, the polymerization temperature, and the polymerization time. A group-containing olefin copolymer was prepared. The polymerization conditions and polymerization results are shown in Table 1, and the physical property measurement results are shown in Table 2.

[Examples 1-13 to 1-15]
Based on the method described in Example 1-4, polymerization was carried out without replenishing ethylene after the start of polymerization. At that time, polar group-containing olefin copolymers of Examples 1-13 to 1-15 were prepared by changing the ligand amount, the polar group-containing monomer concentration, the polymerization temperature, and the polymerization time, respectively. . The polymerization conditions and polymerization results are shown in Table 1, and the physical property measurement results are shown in Table 2. Since ethylene is not replenished in this polymerization method, the ethylene partial pressure at the end of the polymerization is lower than that at the start of the polymerization. The ethylene partial pressure in Table 1 is expressed as “2.5 → 1.5” because the ethylene partial pressure at the start of polymerization is 2.5 MPa and the ethylene partial pressure at the end of polymerization is 1. .5 MPa (the same applies to the following description).

[Example 1-16]
SHOP ligand: synthesis of 2- (2,6-diphenoxyphenyl) (2-phenoxyphenyl) phosphanyl-6- (pentafluorophenyl) phenol (B-114) described in Japanese Patent Application Laid-Open No. 2013-038771 The following ligand B-114 was obtained according to the method of (Synthesis Example 4).

Formation of Complex 145 mg of the above 2- (2,6-diphenoxyphenyl) (2-phenoxyphenyl) phosphanyl-6- (pentafluorophenyl) phenol (B-114) was added to a 50 ml eggplant-shaped flask sufficiently purged with nitrogen. (200 μmol) was weighed. Next, 56 mg (200 μmol) of bis-1,5-cyclooctadiene nickel (0) (hereinafter referred to as Ni (COD) 2) was weighed into a 50 ml eggplant type flask, dissolved in 20 ml of dry toluene, and 10 mmol / l. A Ni (COD) 2 toluene solution was prepared. The total amount (20 ml) of Ni (COD) 2-toluene solution obtained here was added to an eggplant-shaped flask containing B-114 and stirred in a hot water bath at 40 ° C. for 30 minutes, whereby B-114 and Ni (COD 20 ml of a 10 mmol / l solution of the reaction product of 2) was obtained.

Copolymerization of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) In an autoclave with a stirring blade having an internal volume of 2.4 liters, 1000 ml of dry toluene, 36.6 mg of tri-n-octylaluminum (TNOA) ( 0.10 mmol) and 1.8 ml (10 mmol) of 4-HBAGE were charged. The temperature of the autoclave was raised to 90 ° C. while stirring and nitrogen was supplied to 0.3 MPa. Then, ethylene was supplied to a pressure of 2.8 MPa so that the ethylene partial pressure was 2.5 MPa. After the temperature and pressure were stabilized, 2.0 ml (20 μmol) of the previously prepared B-114-Ni complex solution was injected with nitrogen to initiate copolymerization. The temperature was kept at 90 ° C. during the reaction. After polymerization for 46 minutes, the reaction was stopped by cooling and depressurization. The reaction solution was poured into 1 liter of acetone to precipitate the polymer, and then collected by filtration, washing, and further dried under reduced pressure at 60 ° C. until a constant weight was obtained. The residual polar group-containing monomer was removed, and finally 32 g of the polar group-containing olefin copolymer was recovered.
The polymerization conditions and polymerization results are shown in Table 1, and the physical property measurement results are shown in Table 2. In Table 1, the polymerization activity represents the copolymer yield (g) per 1 mol of the complex used for the polymerization. Since ethylene is not replenished in this polymerization method, the ethylene partial pressure at the end of the polymerization is lower than that at the start of the polymerization.
The polymerization activity was calculated on the assumption that B-114 and Ni (COD) 2 reacted one-on-one to form a nickel complex.
Further, 4-HBAGE used for copolymerization was dehydrated with molecular sieve 3A.

[Comparative Example 1-1]
Ethylene homopolymerization No polar group-containing comonomer and tri-n-octylaluminum (TNOA) were used, the amount of transition metal complex was 0.2 μmol, the polymerization pressure was 3.0 MPa, the polymerization temperature was 100 ° C., and the polymerization time was 30 minutes. Except for this, the same procedure as in Example 1-4 was performed. The polymerization conditions and polymerization results are shown in Table 1, and the physical property measurement results are shown in Table 2.

[Comparative Example 1-2]
It is a copolymer of ethylene and glycidyl methacrylate, and is a polar group-containing olefin copolymer produced by a high-pressure process (Sumitomo Chemical Co., Ltd. brand: Bond First E). The results of physical property measurement are shown in Table 2.

[Comparative Example 1-3]
A copolymer of ethylene and glycidyl methacrylate, which is a polar group-containing olefin copolymer manufactured by a high-pressure process (brand name: Bondfast 2C, manufactured by Sumitomo Chemical Co., Ltd.). The results of physical property measurement are shown in Table 2.

[Consideration of results of Examples and Comparative Examples]
In Examples 1-1 to 1-16, the polar group structural unit amounts are all 0.001 mol% or more, and have practically sufficient adhesion to polyamide. Further, Examples 1-1 to 1-14 have a weight average molecular weight (Mw) of 33,000 or more, and show excellent adhesiveness with polyamide. In comparison, Comparative Example 1 does not contain polar groups and does not adhere to the polyamide at all. From this, it was shown that if the amount of the polar group structural unit contained in the polar group-containing olefin copolymer is 0.001 mol% or more, it has sufficient adhesion with a highly polar substrate.
Examples 1-1 to 1-3, Example 1-4 to Example 1-15, and Example 1-16 are polar group-containing olefin copolymers produced by different production methods. Even if it is the polar group containing olefin copolymer manufactured by any manufacturing method, each has shown sufficient adhesiveness. This fact is not particularly limited as long as it is a production that polymerizes in the presence of a specific transition metal catalyst in producing a polar group-containing olefin copolymer having sufficient adhesion performance with a highly polar material, It showed that the manufacturing method of the polar group containing olefin copolymer which concerns on this invention is not limited.
Examples 1-11 and 1-12 are not limited to polyamide resins, and EVOH, polyester, and fluororesin have practically sufficient adhesion. From this fact, it is clear that the polar group-containing olefin copolymer of the present invention has sufficient adhesiveness not only with specific polar materials but also with various polar materials. I made it.
Examples 1-1 to 1-16 also show sufficient chemical resistance while having high adhesiveness. On the other hand, Comparative Example 1-2 and Comparative Example 1-3 have sufficient adhesion performance but insufficient chemical resistance. This is presumed to be due to the difference in molecular structure. Since Example 1-1 to Example 1-16 are produced in the presence of a transition metal catalyst, the molecular structure is linear. However, it is known that Comparative Example 1-2 and Comparative Example 1-3 are manufactured by a high-pressure method process, and the molecular structure is a structure having an excessive short chain branch and a long chain branch. Conceivable. It is considered that this difference in structure gives a difference in the swelling property of the amorphous part due to the chemical, and the chemical resistance is also different. As a result, the polar group-containing olefin copolymer according to the present invention is a polar group-containing olefin copolymer having excellent chemical resistance while having high adhesion to a highly polar base material. Indicated.
The significance and rationality of the configuration of the present invention (invention specific matter) and the superiority over the prior art are clarified by the good results of each of the above examples and the comparison with each comparative example.

[Experimental Example 2] Evaluation of multi-component polar group-containing olefin copolymer (B) (1) Polar group-containing structural unit amount The polar group-containing structural unit amount was determined using a ¹ H-NMR spectrum. The specific method was implemented by Experimental Example 1 and the method described above.

(2) Weight average molecular weight (Mw) and molecular weight distribution parameter (Mw / Mn)
The weight average molecular weight (Mw) was determined by gel permeation chromatography (GPC). Further, the molecular weight distribution parameter (Mw / Mn) was further calculated by the number average molecular weight (Mn) by gel permeation chromatography (GPC), and calculated by the ratio of Mw to Mn, Mw / Mn. The specific method was implemented by Experimental Example 1 and the method described above.

(3) Melting | fusing point Melting | fusing point is shown by the peak temperature of the endothermic curve measured with the differential scanning calorimeter (DSC). It measured by going through the process similar to Experimental example 1. FIG.

(4) Adhesive strength Adhesive strength was measured by preparing a press plate as a measurement sample and various substrate films, making a laminate by overlaying the two types and hot pressing, and performing a peel test. . It measured by going through the process similar to Experimental example 1. FIG.

(5) Tensile impact strength [1] Method for preparing tensile impact strength test samples The resin composition pellets of each example and each comparative example were placed in a 1 mm thick hot press mold, and the surface temperature was 230 ° C. After preheating in a press for 5 minutes, the resin was melted by repeating pressurization and decompression, and the residual gas in the molten resin was degassed, and further pressurized at 4.9 MPa and held for 5 minutes. Thereafter, the plate was gradually cooled at a rate of 10 ° C./min with a pressure of 4.9 MPa applied, and the molded plate was taken out of the mold when the temperature dropped to near room temperature. The obtained molded plate was conditioned for 48 hours or more in an environment of temperature 23 ± 2 ° C. and humidity 50 ± 5 ° C. A test piece having the shape of ASTM D1822 Type-S was punched from the press plate after the condition adjustment, and used as a tensile impact strength test sample.

[2] Tensile Impact Strength Test Conditions Tensile impact strength was measured using the above test piece with reference to the method B of JIS K 7160-1996. The only difference from JIS K 7160-1996 is the shape of the test piece. With respect to other measurement conditions and the like, the test was performed by a method according to JIS K 7160-1996.

(6) δ (G * = 0.1 MPa) Measurement by Dynamic Viscoelasticity Measurement δ (G * = 0.1 MPa) measurement by dynamic viscoelasticity measurement was measured by going through the same steps as in Experimental Example 1. .

(7) Aluminum (Al) Amount The aluminum (Al) amount contained in the multi-component polar group-containing olefin copolymer was measured by going through the same steps as in Experimental Example 1.

[Example 2-1]
Synthesis of SHOP-based ligand (B-27DM) A SHOP-based ligand (B-27DM) was synthesized in the same manner as in Example 1-4.

Formation of Complex A reaction product of B-27DM and Ni (COD) 2 was obtained in the same manner as in Example 1-4.

(Ethylene / 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) / acrylic acid-n-butyl terpolymer)
In an autoclave with a stirring blade having an internal volume of 2.4 liters, 1000 ml of dry toluene, 36.6 mg (0.1 mmol) of tri-n-octylaluminum (TNOA), and 3.6 ml (20 mmol) of 4-HBAGE were acrylic. 7.1 ml (50 mmol) of acid-n-butyl was charged. The temperature of the autoclave was raised to 80 ° C. while stirring, and nitrogen was supplied to 0.4 MPa. Then, ethylene was supplied to a pressure of 2.8 MPa so that the ethylene partial pressure was 2.4 MPa. After the temperature and pressure were stabilized, 10 ml (100 μmol) of the previously prepared B-27DM-Ni complex solution was injected with nitrogen to initiate copolymerization. During the reaction, the temperature was kept at 80 ° C., and ethylene was continuously supplied so that the pressure was maintained. After polymerization for 180 minutes, the reaction was stopped by cooling and depressurization. The reaction solution was poured into 1 liter of acetone to precipitate the polymer, and then collected by filtration, washing, and further dried under reduced pressure at 60 ° C. until a constant weight was obtained. The polar group-containing monomer remaining in was removed, and 19.4 g of a polar group-containing olefin copolymer was finally recovered. The polymerization conditions and polymerization results are shown in Table 3, and the physical property measurement results are shown in Table 4. The polymerization activity was calculated on the assumption that B-27DM and Ni (COD) 2 reacted one-on-one to form a nickel complex.
Further, 4-HBAGE used for copolymerization was dehydrated with molecular sieve 3A.

[Example 2-2, Comparative example 2-1, Comparative example 2-2]
Of the methods described in Example 2-1, the polymerization was carried out by changing the amount of ligand, comonomer type, monomer concentration, polymerization temperature, and polymerization time, respectively, so that Example 2-2 and Comparative Example 2-1 A polar group-containing olefin copolymer of Comparative Example 2-2 was prepared. The polymerization conditions and polymerization results are shown in Table 3, and the physical property measurement results are shown in Table 4.

[Example 2-3]
Synthesis of SHOP type ligand (B-111) The following ligand B-111 was obtained according to the method described in Japanese Patent Application Laid-Open No. 2013-038771 (Synthesis Example 1).

Formation of Complex 137 mg (200 μmol) of the following B-111 was weighed into a 50 ml eggplant-shaped flask sufficiently purged with nitrogen. Next, 56 mg (200 μmol) of bis-1,5-cyclooctadiene nickel (0) (hereinafter referred to as Ni (COD) 2) was weighed into a 50 ml eggplant type flask, dissolved in 20 ml of dry toluene, and 10 mmol / l. A Ni (COD) 2 toluene solution was prepared. The total amount (20 ml) of Ni (COD) 2-toluene solution obtained here was added to an eggplant-shaped flask containing B-27DM, and stirred in a hot water bath at 40 ° C. for 30 minutes, whereby B-111 and Ni (COD 20 ml of a 10 mmol / l solution of the reaction product of 2) was obtained.

(Ethylene / 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) / acrylic acid-n-butyl terpolymer)
In an autoclave with a stirring blade with an internal volume of 2.4 liters, 1000 ml of dry toluene, 54.9 mg (0.15 mmol) of tri-n-octylaluminum (TNOA), and 3.96 ml (22 mmol) of 4-HBAGE were acrylic. 19.9 ml (140 mmol) of acid-n-butyl was charged. While stirring, the temperature of the autoclave was raised to 70 ° C. and nitrogen was supplied to 0.4 MPa, and then ethylene was supplied to a pressure of 2.8 MPa so that the ethylene partial pressure was 2.4 MPa. After the temperature and pressure were stabilized, 18 ml (180 μmol) of the previously prepared B-111-Ni complex solution was injected with nitrogen to initiate copolymerization. During the reaction, the temperature was maintained at 70 ° C., and ethylene was continuously supplied so that the pressure was maintained. After polymerization for 120 minutes, the reaction was stopped by cooling and depressurization. The reaction solution was poured into 1 liter of acetone to precipitate the polymer, and then collected by filtration, washing, and further dried under reduced pressure at 60 ° C. until a constant weight was obtained. The polar group-containing monomer remaining in was removed, and 21.0 g of a polar group-containing olefin copolymer was finally recovered. The polymerization conditions and polymerization results are shown in Table 3, and the physical property measurement results are shown in Table 4. The polymerization activity was calculated on the assumption that B-111 and Ni (COD) 2 reacted one-on-one to form a nickel complex.
Further, 4-HBAGE used for copolymerization was dehydrated with molecular sieve 3A.

[Example 2-4]
Among the methods described in Example 2-3, the polar group-containing olefin copolymer of Example 2-4 was polymerized by changing the amount of ligand, comonomer species, monomer concentration, polymerization temperature, and polymerization time. A polymer was prepared. The polymerization conditions and polymerization results are shown in Table 3, and the physical property measurement results are shown in Table 4.

[Comparative Example 2-3]
It is a copolymer of ethylene, propylene, and hexene, and is an olefin copolymer manufactured by a metallocene catalyst (Nippon Polyethylene Co., Ltd., brand: Kernel KF370). The results of physical property measurements are shown in Table 4.

[Comparative Example 2-4]
It is a copolymer of ethylene and glycidyl methacrylate, and is a polar group-containing olefin copolymer manufactured by a high-pressure process (brand name: Bond First E) manufactured by Sumitomo Chemical Co., Ltd. The results of physical property measurements are shown in Table 4.

[Comparative Example 2-5]
A copolymer of ethylene and glycidyl methacrylate, which is a polar group-containing olefin copolymer manufactured by a high-pressure process (brand name: Bondfast 2C, manufactured by Sumitomo Chemical Co., Ltd.). The results of physical property measurements are shown in Table 4.

[Consideration of results of Examples and Comparative Examples]
Examples 2-1 to 2-4 are multi-component polar group-containing olefin copolymers, which show sufficient adhesion, but comparative examples 2-3 of olefin copolymers not containing polar groups are It was clarified that no adhesiveness was exhibited. This has shown that it is essential to contain a polar group in order to express adhesiveness.
The multi-component polar group-containing olefin copolymers of Examples 2-1 to 2-4 are the same as the binary polar group-containing olefin copolymers of Comparative Examples 2-1 to 2-2 having similar polar groups. It was clarified that the adhesiveness has improved dramatically compared to the coalescence. This indicates that the adhesiveness can be improved regardless of the type of the polar group or the third comonomer by making the copolymer flexible with an arbitrary third comonomer.
Examples 2-1 to 2-4 also show sufficient impact resistance while having high adhesiveness. On the other hand, Comparative Example 2-4 to Comparative Example 2-5 have sufficient adhesion performance but insufficient impact resistance. This is presumed to be due to the difference in molecular structure. Since Example 2-1 to Example 2-4 are produced in the presence of a transition metal catalyst, their molecular structures are linear. However, it is known that Comparative Examples 2-4 to 2-5 are manufactured by a high-pressure process, and the molecular structure thereof is a structure having an excessive number of short-chain branches and long-chain branches. Conceivable. Therefore, it is thought that impact resistance falls as a result.
From the above results, the utility of the copolymer according to the present invention, which is a multi-component polar group-containing olefin copolymer and can improve the adhesion and impact resistance in a balanced manner, was demonstrated.

[Experimental Example 3] Evaluation of Olefin Resin Composition (D) (1) Polar Group-Containing Structural Unit Amount in Polar Group-Containing Olefin Copolymer (A ′) Polar group-containing structural unit amount is ¹ H-NMR spectrum Was determined using. The specific method was implemented by Experimental Example 1 and the method described above.

(5) δ (G * = 0.1 MPa) Measurement by Dynamic Viscoelasticity Measurement δ (G * = 0.1 MPa) measurement by dynamic viscoelasticity measurement was measured by going through the same steps as in Experimental Example 1. .

(6) Aluminum (Al) Amount The aluminum (Al) amount contained in the polar group-containing olefin copolymer (A ′) was measured by going through the same steps as in Experimental Example 1.

(7) Melt flow rate (MFR)
MFR was measured according to JIS K7120 (1999) at a temperature of 190 ° C. under a load of 2.16 kg. Details are described above.

(8) Density Density was measured according to JIS K7112-A method (1999). Details are described above.

[Production Example 3-1] Production of polar group-containing olefin copolymer (A'-3-1) Synthesis of SHOP-type ligand (B-27DM) In the same manner as in Example 1-4, A ligand (B-27DM) was synthesized.

Copolymerization of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) In a 2.4 liter autoclave with a stirring blade, 1000 ml of dry toluene, 54.9 mg of tri-n-octylaluminum (TNOA) ( 0.15 mmol) and 2.7 ml (15 mmol) of 4-HBAGE were charged. The temperature of the autoclave was raised to 105 ° C. while stirring, nitrogen was supplied to 0.3 MPa, and then ethylene was supplied to a pressure of 2.8 MPa so that the ethylene partial pressure was 2.5 MPa. After the temperature and pressure were stabilized, 3.0 ml (30 μmol) of the previously prepared B-27DM-Ni complex solution was injected with nitrogen to initiate copolymerization. During the reaction, the temperature was maintained at 105 ° C., and ethylene was continuously supplied so that the pressure was maintained. After polymerization for 60 minutes, the reaction was stopped by cooling and depressurization. The reaction solution was poured into 1 liter of acetone to precipitate the polymer, and then collected by filtration, washing, and further dried under reduced pressure at 60 ° C. until a constant weight was obtained. The polar group-containing monomer remaining in was removed, and finally 38 g of the polar group-containing olefin copolymer was recovered. The polymerization conditions and polymerization results are shown in Table 5, and the physical property measurement results are shown in Table 6. In Table 5, the polymerization activity represents the copolymer yield (g) per 1 mol of the complex used for the polymerization. The polymerization activity was calculated on the assumption that B-27DM and Ni (COD) 2 reacted one-on-one to form a nickel complex.
Further, 4-HBAGE used for copolymerization was dehydrated with molecular sieve 3A.

[Production Examples 3-2 to 3-4] Production of polar group-containing olefin copolymers (A'-3-2, A'-3-3, A'-3-4) As described in Production Example 3-1. Among the methods, the polar group-containing olefin copolymer of Production Example 3-2 to Production Example 3-4 is polymerized by changing the ligand amount, the polar group-containing monomer concentration, the polymerization temperature, and the polymerization time, respectively. Was prepared. The polymerization conditions and polymerization results are shown in Table 5, and the physical property measurement results are shown in Table 6.

[Production Example 3-5] Production of polar group-containing olefin copolymer (A'-3-5) Based on the method described in Production Example 3-1, polymerization was performed without replenishing ethylene after the start of polymerization. It was. At that time, the polar group-containing olefin copolymer of Production Example 3-5 was prepared by changing the ligand amount, the polar group-containing monomer concentration, the polymerization temperature, and the polymerization time. The polymerization conditions and polymerization results are shown in Table 5, and the physical property measurement results are shown in Table 6. Since ethylene is not replenished in this polymerization method, the ethylene partial pressure at the end of the polymerization is lower than that at the start of the polymerization.

[Production Example 3-6] Production of polar group-containing olefin copolymer (A'-3-6) SHOP ligand: 2- (2,6-diphenoxyphenyl) (2-phenoxyphenyl) phosphanyl-6 Synthesis of-(pentafluorophenyl) phenol (B-114) In the same manner as in Example 1-16, 2- (2,6-diphenoxyphenyl) (2-phenoxyphenyl) phosphanyl-6- (pentafluorophenyl) ) Phenol (B-114) was obtained.

Formation of Complex According to the same method as in Example 1-16, 2- (2,6-diphenoxyphenyl) (2-phenoxyphenyl) phosphanyl-6- (pentafluorophenyl) phenol (B-114) and bis-1 , 5-cyclooctadiene nickel (0) (Ni (COD) 2) complex solution was obtained.

Copolymerization of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) A copolymer of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) was obtained in the same manner as in Example 1-16. It was.
The polymerization conditions and polymerization results are shown in Table 5, and the physical property measurement results are shown in Table 6.

[Production Example 3-7] Production of polar group-containing olefin copolymer (A'-3-7) Drent type ligand: (2-isopropyl-phenyl) (2'-methoxy-phenyl) (2 ''- Synthesis of sulfonyl-phenyl) phosphine (I) In the same manner as in Example 1-1, the Dren ligand: (2-isopropyl-phenyl) (2′-methoxy-phenyl) (2 ″ -sulfonyl-phenyl) ) Phosphine (I) was obtained.

Formation of Complex 100 μmol of palladium bisdibenzylideneacetone and phosphorus sulfonic acid ligand (I) were weighed in a 30 mL flask sufficiently purged with nitrogen, and dehydrated toluene (10 mL) was added. The catalyst slurry was prepared by processing for 10 minutes.

Copolymerization of ethylene and 1,2-epoxy-9-decene A copolymer of ethylene and 1,2-epoxy-9-decene was obtained in the same manner as in Example 1-1.
The polymerization conditions and polymerization results are shown in Table 5, and the physical property measurement results are shown in Table 6.

[Production Example 3-8] Production of polar group-containing olefin copolymer (A'-3-8) Copolymerization of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) As described in Production Example 3-7 In the same manner as in Production Example 3-7, except that 54 ml (0.3 mol) of 4-HBAGE was used as a polar group-containing monomer, the amount of transition metal complex was 50 μmol, the polymerization temperature was 90 ° C., and the polymerization time was 70 minutes. I did it. The polymerization conditions and polymerization results are shown in Table 5, and the physical property measurement results are shown in Table 6.

Polar group-containing olefin copolymer (A'-3-9)
It is a copolymer of ethylene and glycidyl methacrylate, and is a polar group-containing olefin copolymer produced by a high-pressure process (Sumitomo Chemical Co., Ltd. brand: Bond First E). Table 6 shows the physical properties of the polar group-containing olefin copolymer.

[Example 3-1]
0.05 g of polar group-containing olefin copolymer (A′-3-1) and 9.95 g of linear low density polyethylene (manufactured by Nippon Polyethylene Co., Ltd., trade name: F30FG, indicated as “LLDPE” in the table) After dry blending, the mixture was put into a small twin-screw kneader (Model: MC15 manufactured by DSM Xplore) and melt-kneaded for 5 minutes. At that time, the barrel temperature was 180 ° C., and the screw rotation speed was 100 rpm. After 5 minutes, the rod-shaped resin composition was extruded from the resin discharge port, placed on a stainless steel tray, and cooled and solidified at room temperature. The cooled resin composition was cut into pellets to produce resin composition pellets. The obtained pellets of the resin composition were subjected to the above-described adhesive strength measurement, and the adhesive strength was measured. The adhesive strength measurement results are shown in Table 7.

[Examples 3-2 to 3-32]
Of the methods described in Example 3-1, the type of the polar group-containing olefin copolymer and the blending ratio of the polar group-containing olefin copolymer and the linear low density polyethylene were each changed to produce Example 3. Resin compositions of -2 to 3-32 were produced. Tables 7 and 8 show the blending ratio of the raw material resins and the adhesive strength measurement results.

[Example 3-33]
3.0 g of polar group-containing olefin copolymer (A′-3-7) and 7.0 g of linear low density polyethylene (manufactured by Nippon Polyethylene Co., Ltd., trade name: F30FG) are dry blended, and a small biaxial kneader ( DSM Xplore model: MC15) and melt-kneaded for 5 minutes. At that time, the barrel temperature was 180 ° C., and the screw rotation speed was 100 rpm. After 5 minutes, the rod-shaped resin composition was extruded from the resin discharge port, placed on a stainless steel tray, and cooled and solidified at room temperature. The cooled resin composition was cut into pellets to produce resin composition pellets. The obtained pellets of the resin composition were subjected to the above-described adhesive strength measurement, and the adhesive strength was measured. The adhesive strength measurement results are shown in Table 10.

[Example 3-34]
3.0 g of polar group-containing olefin copolymer (A'-3-8) and 7.0 g of linear low density polyethylene (manufactured by Nippon Polyethylene Co., Ltd., trade name: F30FG) are dry blended, and a small biaxial kneader ( DSM Xplore model: MC15) and melt-kneaded for 5 minutes. At that time, the barrel temperature was 180 ° C., and the screw rotation speed was 100 rpm. After 5 minutes, the rod-shaped resin composition was extruded from the resin discharge port, placed on a stainless steel tray, and cooled and solidified at room temperature. The cooled resin composition was cut into pellets to produce resin composition pellets. The obtained pellets of the resin composition were subjected to the above-described adhesive strength measurement, and the adhesive strength was measured. The adhesive strength measurement results are shown in Table 10.

[Example 3-35 to Example 3-39]
Resin compositions of Examples 3-35 to 3-39 were produced in the same manner as in Example 3-34 except that the linear low density polyethylene of Example 3-34 was changed to the olefin resin shown in Table 9. The adhesive strength was measured. Table 9 shows the manufacturer, brand name, grade, monomer species used for polymerization, and physical properties of the resin, and Table 10 shows the adhesive strength measurement results. “LLDPE” in Table 9 represents linear low density polyethylene, respectively.

[Comparative Examples 3-1 to 3-10]
Of the methods described in Example 3-1, the type of polar group-containing olefin copolymer is the polar group-containing olefin copolymer (A'-3-9), and the type of polar group-containing olefin copolymer is polar. Resin compositions of Comparative Examples 3-1 to 3-10 were produced by changing the blending ratio of the group-containing olefin copolymer and the linear low density polyethylene. Table 11 shows the blending ratio of the raw resin and the measurement results of the adhesive strength.

[Comparative Example 3-11]
10 g of linear low density polyethylene (manufactured by Nippon Polyethylene Co., Ltd., trade name: Novatec (F30FG), indicated as “LLDPE” in the table) is charged into a small twin-screw kneader (model: MC15, manufactured by DSM Xplore) Melt kneading for 5 minutes. At that time, the barrel temperature was 180 ° C., and the screw rotation speed was 100 rpm. After 5 minutes, the rod-shaped resin composition was extruded from the resin discharge port, placed on a stainless steel tray, and cooled and solidified at room temperature. The cooled resin composition was cut into pellets to produce resin composition pellets. The obtained pellets of the resin composition were subjected to the above-described adhesive strength measurement, and the adhesive strength was measured. The adhesive strength measurement results are shown in Table 11.

[Consideration of results of Examples and Comparative Examples]
Examples 3-1 to 3-7 are resin compositions in which linear low-density polyethylene (LLDPE) is blended in respective proportions with respect to 100 parts by weight of a polar group-containing olefin copolymer (A′-3-1). . The blending ratio of the polar group-containing olefin copolymer (A′-3-1) and the adhesive strength with the polyamide are summarized in FIG.
Comparative Examples 3-1, 3-2, 3-3, 3-5, 3-7, 3-9, 3-10 are polar group-containing olefin copolymers (A′- 3-9) A resin composition in which linear low density polyethylene (LLDPE) is blended at a ratio of 100 parts by weight. The blending ratio of the polar group-containing olefin copolymer (A′-3-9) and the adhesive strength with polyamide are summarized in FIG. The resin composition blended with the polar group-containing olefin copolymer (A'-3-9) has sufficient adhesion in a region where the blending ratio of the polar group-containing olefin copolymer (A'-3-9) is large. As shown, the adhesiveness sharply decreases as the blending ratio decreases. On the other hand, the resin composition blended with the polar group-containing olefin copolymer (A′-3-1) maintains high adhesion regardless of the blending ratio of the polar group-containing olefin copolymer (A′-3-1). Has been. Based on this result, if the resin composition is a blend of a polar group-containing olefin copolymer produced in the presence of a transition metal catalyst and an olefin resin in a specific range of blend ratio, the blend ratio of the olefin resin is increased. Also showed sufficient adhesion to highly polar materials.

In Examples 3-1 to 3-23 and Examples 3-29 to 3-32, polar group-containing olefin copolymers having different polar group contents (A′-3-1, A′- 3-2, A′-3-3, A′-3-5, and A′-3-6) are resin compositions in which LLDPE is blended at various blending ratios with respect to 100 parts by weight. FIG. 6 shows the blending ratio of the polar group-containing olefin copolymer (A′-3-3) and the adhesive strength with the polyamide. FIG. 6 shows the blending ratio of the polar group-containing olefin copolymer (A′-3-3) and the polyamide. FIG. 7 shows the adhesion strength of each of these, and FIG. 8 summarizes the blending ratio of the polar group-containing olefin copolymer (A′-3-5) and the adhesion strength with the polyamide. These resin compositions show sufficient adhesiveness regardless of the blending ratio of the polar group-containing olefin copolymer. This fact clarified that the resin composition according to the present invention exhibits sufficient adhesiveness regardless of the polar group structural unit amount of the polar group-containing olefin copolymer to be blended.

In Examples 3-33 to 3-39, 233 parts by weight of various olefin-based resins are blended with 100 parts by weight of the polar group-containing olefin copolymer. Regardless of the MFR of the olefin resin, the density, and the monomer species subjected to the polymerization, the resulting olefin resin composition exhibits sufficient adhesion to the polyamide. This fact indicates that, regardless of the type and physical properties of the olefin resin, sufficient adhesion can be obtained if the polar group-containing olefin copolymer and the olefin resin are blended in a specific range of blending ratio. It is expressed.

Examples 3-24 to 3-28 are resin compositions in which linear low-density polyethylene (LLDPE) is blended in respective proportions with respect to 100 parts by weight of the polar group-containing olefin copolymer (A′-3-4). . The blending ratio of the polar group-containing olefin copolymer (A'-3-4) and the adhesive strength with the fluororesin are summarized in FIG. Comparative Examples 3-2, 3-4, 3-6, 3-8, and 3-10 were added to 100 parts by weight of the polar group-containing olefin copolymer (A′-3-9) produced by the high pressure process. On the other hand, it is the resin composition which mix | blended linear low density polyethylene (LLDPE) with each ratio. The blending ratio of the polar group-containing olefin copolymer (A′-3-9) and the adhesive strength with the fluororesin are summarized in FIG. The resin composition blended with the polar group-containing olefin copolymer (A'-3-9) has sufficient adhesion in a region where the blending ratio of the polar group-containing olefin copolymer (A'-3-9) is large. As shown, the adhesiveness sharply decreases as the blending ratio decreases. On the other hand, the resin composition containing the polar group-containing olefin copolymer (A'-3-4) maintains high adhesion regardless of the blending ratio of the polar group-containing olefin copolymer (A'-3-4). Has been. If the resin composition is a blend of a polar group-containing olefin copolymer and an olefin resin produced in the presence of a transition metal catalyst at a blending ratio in a specific range, the blending ratio of the olefin resin is increased. Also showed that it has sufficient adhesion to a highly polar material and that this trend is not limited to combinations with certain highly polar substrates.

The adhesion of the olefin resin composition obtained by blending an olefin resin with a polar group-containing olefin copolymer having a linear structure is maintained regardless of the blending ratio of the polar group-containing olefin copolymer and the olefin resin. The reason for this is not clear, but it is considered that the molecular structure of the polar group-containing olefin copolymer contained in the olefin-based resin composition should be a linear structure. The adhesion performance between olefin copolymers and different polar materials is a numerical value measured by a peel test as exemplified in JIS K6854-1 to 4 (1999) Adhesive-Peel Adhesion Strength Test Method. However, the numerical value measured by this method is considered to be the sum of the chemical and physical bonding force at the interface between different materials and the cohesive force of the material or the stress at the time of deformation. It is done. The polar group-containing olefin copolymer produced by the high-pressure radical polymerization process has a highly branched molecular structure containing an excessive amount of short-chain branches and long-chain branches. Olefin resins having such a structure are known to have inferior mechanical properties, cohesive strength, impact resistance, etc., compared with olefin resins having a linear structure. It is inferred that the polymer also has this tendency. Even if the polar group-containing olefin copolymer produced by the high-pressure radical polymerization process has sufficient chemical bonds with different materials, the cohesive force is inferior to that of the polar group-containing olefin copolymer having a linear structure. As a result, the adhesiveness is considered to decrease.

[Experimental Example 4] Evaluation of olefin resin composition (D ')

(1) Polar group-containing structural unit amount in polar group-containing olefin copolymer (A ′) The polar group-containing structural unit amount was determined using a ¹ H-NMR spectrum. The specific method was implemented by Experimental Example 1 and the method described above.

(7) Heat of fusion ΔH
The heat of fusion ΔH (J / g) was measured using a differential scanning calorimeter (DSC) under the same conditions as those for the melting point measurement. Details are described above.

(8) Melt flow rate (MFR)
MFR was measured by going through the same steps as in Experimental Example 3.

(9) Density The density was measured by going through the same steps as in Experimental Example 3.

[Production Example 4-1] Production of polar group-containing olefin copolymer (A′-4-1) Drent type ligand (2-isopropyl-phenyl) (2′-methoxy-phenyl) (2 ″ -sulfonyl) Synthesis of —phenyl) phosphine (I) In the same manner as in Example 1-1, the Dren ligand: (2-isopropyl-phenyl) (2′-methoxy-phenyl) (2 ″ -sulfonyl-phenyl) Phosphine (I) was obtained.

Copolymerization of ethylene and 4-vinyl-1,2-epoxycyclohexane Copolymerization of ethylene and 4-vinyl-1,2-epoxycyclohexane was performed in the same manner as in Example 1-2. .
Polymerization conditions and polymerization results are shown in Table 12, and physical property measurement results are shown in Table 13.

[Production Example 4-2] Production of polar group-containing olefin copolymer (A'-4-2) Synthesis of SHOP-based ligand (B-27DM) In the same manner as in Example 1-4, A ligand (B-27DM) was synthesized.

Copolymerization of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) In a 2.4 liter autoclave with a stirring blade, 1000 ml of dry toluene, 54.9 mg of tri-n-octylaluminum (TNOA) ( 0.15 mmol) and 2.7 ml (15 mmol) of 4-HBAGE were charged. The temperature of the autoclave was raised to 105 ° C. while stirring, nitrogen was supplied to 0.3 MPa, and then ethylene was supplied to a pressure of 2.8 MPa so that the ethylene partial pressure was 2.5 MPa. After the temperature and pressure were stabilized, 3.0 ml (30 μmol) of the previously prepared B-27DM-Ni complex solution was injected with nitrogen to initiate copolymerization. During the reaction, the temperature was maintained at 105 ° C., and ethylene was continuously supplied so that the pressure was maintained. After polymerization for 60 minutes, the reaction was stopped by cooling and depressurization. The reaction solution was poured into 1 liter of acetone to precipitate a polymer, and then recovered by filtration, washing, and further drying under reduced pressure at 60 ° C. until a constant weight was obtained, whereby a polar group-containing olefin copolymer was obtained. The polar group-containing monomer remaining therein was removed, and finally 38 g of the polar group-containing olefin copolymer was recovered. Polymerization conditions and polymerization results are shown in Table 12, and physical property measurement results are shown in Table 13. In Table 12, the polymerization activity represents the copolymer yield (g) per 1 mol of the complex used for the polymerization. The polymerization activity was calculated on the assumption that B-27DM and Ni (COD) 2 reacted one-on-one to form a nickel complex.
Further, 4-HBAGE used for copolymerization was dehydrated with molecular sieve 3A.

[Production Example 4-4 to Production Example 4-7] Production of polar group-containing olefin copolymers (A′-4-4 to A′-4-7) Among the methods described in Production Example 4-2, The polar group-containing olefin copolymers of Production Example 4-4 to Production Example 4-7 were prepared by changing the ligand amount, the polar group-containing monomer concentration, the polymerization temperature, and the polymerization time, respectively. Polymerization conditions and polymerization results are shown in Table 12, and physical property measurement results are shown in Table 13.

[Production Example 4-3, Production Example 4-8] Production of polar group-containing olefin copolymer (A'-4-3, A'-4-8) Based on the method described in Production Example 4-2, Polymerization was carried out without replenishing ethylene after the start of polymerization. At that time, the polar group-containing olefin copolymer of Production Example 4-3 and Production Example 4-8 was polymerized by changing the ligand amount, the polar group-containing monomer concentration, the polymerization temperature, and the polymerization time, respectively. Prepared. Polymerization conditions and polymerization results are shown in Table 12, and physical property measurement results are shown in Table 13. Since ethylene is not replenished in this polymerization method, the ethylene partial pressure at the end of the polymerization is lower than that at the start of the polymerization.

Polar group-containing olefin copolymer (A'-4-9)
It is a copolymer of ethylene and glycidyl methacrylate, and is a polar group-containing olefin copolymer produced by a high-pressure process (Sumitomo Chemical Co., Ltd. brand: Bond First E). The results of physical property measurement are shown in Table 13.

Polar group-containing olefin copolymer (A'-4-10)
A copolymer of ethylene and glycidyl methacrylate, which is a polar group-containing olefin copolymer manufactured by a high-pressure process (brand name: Bondfast 2C, manufactured by Sumitomo Chemical Co., Ltd.). The results of physical property measurement are shown in Table 13.

[Example 4-1]
7.0 g of polar group-containing olefin copolymer (A'-4-1) and 3.0 g of high-density polyethylene (trade name: HS330P, manufactured by Nippon Polyethylene Co., Ltd.) as an olefin resin are dry-blended and compact biaxial kneading It was put into a machine (DSM Xplore model: MC15) and melt-kneaded for 5 minutes. At that time, the barrel temperature was 180 ° C., and the screw rotation speed was 100 rpm. After 5 minutes, a rod-shaped olefin-based resin composition was extruded from a resin discharge port, placed on a stainless steel tray, and solidified by cooling at room temperature. The cooled olefin resin composition was cut into pellets to produce olefin resin composition pellets and subjected to various physical property tests. Table 14 shows the manufacturer, grade, brand name, resin classification, monomer type used for polymerization, and resin physical properties, Table 15 shows the blending ratio in the olefin-based resin composition, and Table 16 shows the physical property evaluation results. Shown in
In Table 14, “HDPE” represents high density polyethylene, “LLDPE” represents linear low density polyethylene, “PP” represents polypropylene, and “COC” represents cyclic olefin copolymer.

[Example 4-2 to Example 4-12, Comparative Example 4-1 to Comparative Example 4-4]
Of the methods described in Example 4-1, Examples 4-2 to 4-12 were prepared by changing the types of polar group-containing olefin copolymers, types of olefinic resins, and blending ratios, respectively. Resin compositions of Comparative Examples 4-1 to 4-4 were produced. Table 14 shows the manufacturer, grade, brand name, resin classification, monomer type used for polymerization, and physical properties of each olefin resin, Table 15 shows the blending ratio of the raw material resins, and Table 16 shows the physical property evaluation results.

[Consideration of results of Examples and Comparative Examples]
Examples 4-1 to 4-12 show polar group-containing olefin copolymers (A′-4-1, A′-4-2, A′-4-3, A′-4-4, A ′ -4-5, A′-4-6, A′-4-7, A′-4-8) 1 to 99 olefin resins having a density of 0.890 g / cm ³ or more per 100 parts by weight of each. , An olefin-based resin composition appropriately blended at a blending ratio of 900 parts by weight, exhibiting sufficient adhesiveness to polyamide, and exhibiting sufficiently excellent heat resistance with a melting point of 119 ° C. or higher. Further, Examples 4-1 to 4-3 and Examples 4-5 to 4-12, which are blended with an olefin resin having a melting point of 90 ° C. or higher, have a melting point of 119 ° C. or higher and a heat of fusion ΔH. Showed more excellent heat resistance of 80 J / g or more.
Comparative Examples 4-1 and 4-2, in which the density of the olefin resin is less than 0.890 g / cm ³ , have a melting point of less than 119 ° C. and have poor heat resistance. Furthermore, the heat of fusion ΔH is also less than 80 J / g, which is inferior in heat resistance.
Comparative Example 4-3 and Comparative Example 4-4 are based on 100 parts by weight of a polar group-containing olefin copolymer (A′-4-9, A′-4-10) produced by the high-pressure radical process. An olefin resin composition in which an olefin resin having a density of 0.890 g / cm ³ or more is appropriately blended at a blending ratio of 1 to 99,900 parts by weight, but with sufficient heat resistance, it has adhesiveness to polyamide. Was very low. From this fact, the polar group-containing olefin copolymer of the present invention has an olefin resin having a density of 0.890 g / cm ³ or more compared to the polar group-containing olefin copolymer produced by the high-pressure radical polymerization process. The decrease in adhesion performance when blended is small, and 1 to 99,900 parts by weight of an olefin resin having a density of 0.890 g / cm ³ or more with respect to 100 parts by weight of the polar group-containing olefin copolymer according to the present invention. It has been shown that adhesion and heat resistance can be balanced by blending.

The reason why the olefin-based resin composition obtained by blending a polar group-containing olefin copolymer having a linear structure with an olefin-based resin having a density of 0.890 g / cm ³ or more has a small decrease in adhesion performance and has sufficient adhesion. Although it is not clear, it is probably considered that the molecular structure of the polar group-containing olefin copolymer contained in the olefin resin composition needs to be a linear structure. Adhesion performance between a highly polar dissimilar material and an olefin copolymer is measured by a peel test as exemplified in JIS K6854-1 to 4 (1999) “Adhesive-Peel Adhesive Strength Test Method”. Although the numerical value is evaluated, the numerical value measured by this method is the sum of the chemical and physical bonding force at the interface between different materials and the cohesive force of the material or the stress at the time of deformation. Conceivable. The polar group-containing olefin copolymer produced by the high-pressure radical polymerization process has a highly branched molecular structure containing an excessive amount of short-chain branches and long-chain branches. Olefin resins having such a structure are known to have inferior mechanical properties, cohesive strength, impact resistance, etc., compared with olefin resins having a linear structure. It is inferred that the polymer also has this tendency. Even if the polar group-containing olefin copolymer produced by the high-pressure radical polymerization process has sufficient chemical bonds with different materials, the cohesive force is inferior to that of the polar group-containing olefin copolymer having a linear structure. As a result, the adhesiveness is considered to decrease.

In Examples 4-8, 4-11 and 4-12, 1 to 99,900 olefin resin having a density of 0.890 g / cm ³ or more was added to 100 parts by weight of the polar group-containing olefin copolymer. It is an olefin-based resin composition that is appropriately blended at a blending ratio of parts by weight, and exhibits sufficient adhesion to fluororesins. This fact clarified that the olefin resin composition of the present invention has sufficient adhesiveness not only with specific high-polarity materials but also with various high-polarity materials.

In Examples 4-1 to 4-12, an olefin resin having a density of 0.890 g / cm ³ or more is blended with 100 parts by weight of the polar group-containing olefin copolymer. Regardless of the MFR of the olefin resin, the monomer species used for polymerization, and the blending ratio, the resulting olefin resin composition must be able to balance sufficient heat resistance and excellent adhesion with a highly polar resin. showed that. As long as the density of the olefin resin blended in the polar group-containing olefin copolymer of the present invention is 0.890 g / cm ³ or more, the heat resistance and adhesiveness of the olefin resin composition can be balanced. Represents a thing.

[Experimental Example 5] Evaluation of Olefinic Resin Composition (D ″)

(5) Adhesive strength ratio By the adhesive strength measurement method, the resin composition of each Example and Comparative Example, the polar group-containing olefin copolymer contained in these resin compositions, and the respective adhesive strengths were measured, and the resin composition The value obtained by dividing the adhesive strength by the adhesive strength of the polar group-containing olefin copolymer contained in these resin compositions was calculated as the adhesive strength ratio.
This value is an index of the effect of improving the adhesiveness by blending the olefin resin with the polar group-containing olefin copolymer. If this value is larger than “1”, the polar group-containing olefin copolymer has It shows that the adhesion was improved by blending olefin resin.

(7) Aluminum (Al) Content The aluminum (Al) content contained in the polar group-containing olefin copolymer (A ′) was measured by going through the same steps as in Experimental Example 1.

(9) Density Density was measured by going through the same steps as in Experimental Example 3.

[Production Example 5-1] Production of Polar Group-Containing Olefin Copolymer (A′-5-1) Drent type ligand: (2-isopropyl-phenyl) (2′-methoxy-phenyl) (2 ″- Synthesis of sulfonyl-phenyl) phosphine (I) In the same manner as in Example 1-1, the Dren ligand: (2-isopropyl-phenyl) (2′-methoxy-phenyl) (2 ″ -sulfonyl-phenyl) ) Phosphine (I) was obtained.

Copolymerization of ethylene and 4-vinyl-1,2-epoxycyclohexane After substituting an autoclave with a stirring blade of 2.4 liters with a stirring blade with purified nitrogen, dry toluene (1.0 liter) and 4-vinyl 20.9 ml (0.2 mol) of -1,2-epoxycyclohexane was charged. The temperature of the autoclave was raised to 100 ° C. while stirring, nitrogen was supplied to 0.3 MPa, and then ethylene was supplied to a pressure of 2.3 MPa so that the ethylene partial pressure was 2 MPa. After completion of the pressure adjustment, 50 μmol of a transition metal complex (I-Pd complex) was injected with nitrogen to initiate copolymerization. During the reaction, the temperature was kept at 100 ° C., and ethylene was continuously supplied so that the pressure was maintained. After 240 minutes of polymerization, the reaction was stopped by cooling and depressurization. The reaction solution was poured into 1 liter of acetone to precipitate a polymer, and then collected by filtration, washing, and further dried under reduced pressure at 60 ° C. until a constant weight was obtained.
The polymerization conditions and polymerization results are shown in Table 17, and the physical property measurement results are shown in Table 18. In Table 17, the polymerization activity represents the copolymer yield (g) per 1 mol of the complex used for the polymerization. The polymerization activity was calculated on the assumption that the ligand and palladium bisdibenzylideneacetone reacted 1: 1 to form a palladium complex.

[Production Example 5-2] Production of polar group-containing olefin copolymer (A'-5-2) SHOP ligand: 2- (2,6-diphenoxyphenyl) (2-phenoxyphenyl) phosphanyl-6 Synthesis of-(pentafluorophenyl) phenol (B-114) In the same manner as in Example 1-16, 2- (2,6-diphenoxyphenyl) (2-phenoxyphenyl) phosphanyl-6- (pentafluorophenyl) ) Phenol (B-114) was obtained.

Copolymerization of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) A copolymer of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) was obtained in the same manner as in Example 1-16. It was.
The polymerization conditions and polymerization results are shown in Table 17, and the physical property measurement results are shown in Table 18.

[Production Example 5-3] Production of polar group-containing olefin copolymer (A'-5-3) Synthesis of SHOP ligand: B-27DM SHOP coordination in the same manner as in Example 1-4 A child (B-27DM) was synthesized.

Copolymerization of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) In an autoclave with a stirring blade having an internal volume of 2.4 liters, 1000 ml of dry toluene, 36.6 mg of tri-n-octylaluminum (TNOA) ( 0.10 mmol) and 2.7 ml (15 mmol) of 4-HBAGE. The temperature of the autoclave was raised to 105 ° C. while stirring, nitrogen was supplied to 0.3 MPa, and then ethylene was supplied to a pressure of 2.8 MPa so that the ethylene partial pressure was 2.5 MPa. After the temperature and pressure were stabilized, 2.5 ml (25 μmol) of the previously prepared B-27DM-Ni complex solution was injected with nitrogen to initiate copolymerization. The temperature was kept at 105 ° C. during the reaction. After polymerization for 170 minutes, the reaction was stopped by cooling and depressurization. The reaction solution was poured into 1 liter of acetone to precipitate the polymer, and then collected by filtration, washing, and further dried under reduced pressure at 60 ° C. until a constant weight was obtained. The residual polar group-containing monomer was removed, and finally 33 g of the polar group-containing olefin copolymer was recovered.
The polymerization conditions and polymerization results are shown in Table 17, and the physical property measurement results are shown in Table 18. In Table 17, the polymerization activity represents the copolymer yield (g) per 1 mol of the complex used for the polymerization. Since ethylene is not replenished in this polymerization method, the ethylene partial pressure at the end of the polymerization is lower than that at the start of the polymerization.
The polymerization activity was calculated on the assumption that B-27DM and Ni (COD) 2 reacted one-on-one to form a nickel complex.
Further, 4-HBAGE used for copolymerization was dehydrated with molecular sieve 3A.

[Production Example 5-4] Production of polar group-containing olefin copolymer (A'-5-4) Copolymerization of ethylene and 4-hydroxybutyl acrylate glycidyl ether (4-HBAGE) Stirring with an internal volume of 2.4 liters A winged autoclave was charged with 1000 ml of dry toluene, 36.6 mg (0.10 mmol) of tri-n-octylaluminum (TNOA) and 2.7 ml (15 mmol) of 4-HBAGE. The temperature of the autoclave was raised to 50 ° C. while stirring and nitrogen was supplied to 0.3 MPa, and then ethylene was supplied to a pressure of 2.8 MPa so that the ethylene partial pressure was 2.5 MPa. After the temperature and pressure were stabilized, 2.0 ml (20 μmol) of the previously prepared B-27DM-Ni complex solution was injected with nitrogen to initiate copolymerization. During the reaction, the temperature was maintained at 50 ° C., and ethylene was continuously supplied so that the pressure was maintained. After polymerization for 50 minutes, the reaction was stopped by cooling and depressurization. The reaction solution was poured into 1 liter of acetone to precipitate the polymer, and then collected by filtration, washing, and further dried under reduced pressure at 60 ° C. until a constant weight was obtained. The polar group-containing monomer remaining in was removed, and finally 41 g of the polar group-containing olefin copolymer was recovered.
The polymerization conditions and polymerization results are shown in Table 17, and the physical property measurement results are shown in Table 18. In Table 17, the polymerization activity represents the copolymer yield (g) per 1 mol of the complex used for the polymerization.
The polymerization activity was calculated on the assumption that B-27DM and Ni (COD) 2 reacted one-on-one to form a nickel complex.
Further, 4-HBAGE used for copolymerization was dehydrated with molecular sieve 3A.

[Production Example 5-5 to Production Example 5-7] Production of polar group-containing olefin copolymers (A′-5-5 to A′-5-7) Among the methods described in Production Example 5-4, The polar group-containing olefin copolymers of Production Examples 5-5 to 5-7 were prepared by changing the ligand amount, the polar group-containing monomer concentration, the polymerization temperature, and the polymerization time, respectively. The polymerization conditions and polymerization results are shown in Table 17, and the physical property measurement results are shown in Table 18.

[Production Example 5-8] Production of polar group-containing olefin copolymer (A'-5-8) Among the methods described in Production Example 5-3, the amount of ligand, the concentration of polar group-containing monomers, the polymerization temperature, The polar group-containing olefin copolymer of Production Example 5-8 was prepared by changing the polymerization time. The polymerization conditions and polymerization results are shown in Table 17, and the physical property measurement results are shown in Table 18.

Polar group-containing olefin copolymer (A'-5-9)
It is a copolymer of ethylene and glycidyl methacrylate, and is a polar group-containing olefin copolymer produced by a high-pressure process (Sumitomo Chemical Co., Ltd. brand: Bond First E). The results of physical property measurement are shown in Table 18.

[Example 5-1]
7.0 g of polar group-containing olefin copolymer (A′-5-1) and 3.0 g of ethylene-butene copolymer (Mitsui Chemicals, trade name: Tuffmer (A-4085S)) were dry blended, The mixture was put into a small biaxial kneader (DSM Xplore model: MC15) and melt kneaded for 5 minutes. At that time, the barrel temperature was 180 ° C., and the screw rotation speed was 100 rpm. After 5 minutes, the rod-shaped resin composition was extruded from the resin discharge port, placed on a stainless steel tray, and cooled and solidified at room temperature. The cooled resin composition was cut into pellets to produce pellets of the olefin resin composition, and the obtained olefin resin composition was subjected to various physical property tests. Table 19 shows the manufacturer, grade, brand name, resin classification, monomer type used for polymerization, and physical properties of the resin used, Table 20 shows the blending ratio in the olefin resin composition, and Table 11 shows the physical property evaluation results. It shows in Table 21.
In Table 19, “LDPE” is high-pressure low-density polyethylene, “LLDPE” is linear low-density polyethylene, “EEA” is an ethylene-ethyl acrylate copolymer, “EVA” is an ethylene-vinyl acetate copolymer, “ "EPR" represents ethylene propylene rubber, respectively.

[Example 5-2 to Example 5-12, Comparative Example 5-1 to Comparative Example 5-3]
Of the methods described in Example 5-1, the production was carried out by changing the polar group-containing olefin copolymer, the type of olefin resin, and the blending ratio of the polar group-containing olefin copolymer and olefin resin. Resin compositions of Example 5-2 to Example 5-12 and Comparative Example 5-1 to Comparative Example 5-3 were produced. Table 19 shows the manufacturer, grade, brand name, resin classification, monomer type used for polymerization, and physical properties of the resin used, Table 20 shows the blending ratio in the olefin resin composition, and Table 11 shows the physical property evaluation results. It shows in Table 21.

[Consideration of results of Examples and Comparative Examples]
Example 5-1, Example 5-3 to Example 5-8, Example 5-10, and Example 5-11 are polar group-containing olefin copolymers (A′-5-1, A′-5-5). 3, A′-5-4, A′-5-6, A′-5-7) The blending ratio of 1 to 99,900 parts by weight of olefin resin having a melting point of 124 ° C. or less with respect to 100 parts by weight of each The olefin-based resin composition blended as appropriate in the above shows a sufficiently excellent adhesiveness to the fluororesin, and an adhesive strength ratio of 1.0 or more shows a sufficient adhesive improvement effect. Further, Example 5-1, Example 5-3 to Example 5-8, and Example 5-11, which were blended with an olefin resin having a melting point of 110 ° C. or lower, had an adhesive strength ratio to the fluororesin of 2.0 or more. And showed dramatic improvement in adhesion.
Comparative Example 5-1, which uses an olefin resin having a melting point exceeding 124 ° C., has very weak adhesion to fluororesin, and the adhesion strength ratio is less than 1.0, showing an effect of improving adhesion. There wasn't.
Comparative Examples 5-2 and 5-3 have melting points in a specific range with respect to 100 parts by weight of the polar group-containing olefin copolymer (A′-5-9) produced by the high-pressure radical process. The olefin resin composition is an olefin resin composition obtained by appropriately blending an olefin resin at a blending ratio of 1 to 99,900 parts by weight, but the adhesion strength to the fluororesin is very low and the adhesion strength ratio is also inferior. From this fact, when the polar group-containing olefin copolymer of the present invention is blended with an olefin resin having a melting point of 124 ° C. or lower, compared with the polar group-containing olefin copolymer produced by the high-pressure radical polymerization process. The adhesion performance of the olefin copolymer having a melting point of 124 ° C. or lower is blended with 1 to 99,900 parts by weight per 100 parts by weight of the polar group-containing olefin copolymer according to the present invention. It was shown that an improvement effect can be obtained.

Reason why the adhesiveness of an olefin resin composition obtained by blending an olefin resin having a melting point of 124 ° C. or less with a polar group-containing olefin copolymer having a linear structure is improved as compared with a polar group-containing olefin copolymer alone. Although it is not clear, it is considered that the molecular structure of the polar group-containing olefin copolymer contained in the olefin-based resin composition needs to be a linear structure. Adhesion performance between a highly polar dissimilar material and an olefin copolymer is measured by a peel test as exemplified in JIS K6854-1 to 4 (1999) “Adhesive-Peel Adhesion Strength Test Method”. Although the numerical value is evaluated, the numerical value measured by this method is the sum of the chemical and physical bonding force at the interface between different materials and the cohesive force of the material or the stress at the time of deformation. Conceivable. The polar group-containing olefin copolymer produced by the high-pressure radical polymerization process has a highly branched molecular structure containing an excessive amount of short-chain branches and long-chain branches. Olefin resins having such a structure are known to have inferior mechanical properties, cohesive strength, impact resistance, etc., compared with olefin resins having a linear structure. It is inferred that the polymer also has this tendency. Even if the polar group-containing olefin copolymer produced by the high-pressure radical polymerization process has sufficient chemical bonds with different materials, the cohesive force is inferior to that of the polar group-containing olefin copolymer having a linear structure. As a result, the adhesiveness is considered to decrease.

Example 5-2, Example 5-9, and Example 5-12 are for the polar group-containing olefin copolymers (A′-5-2, A′-5-5, A′-5-8), respectively. An olefin resin composition in which an olefin resin having a melting point of 124 ° C. or lower is blended at a blending ratio within a specific range, exhibits sufficient adhesion to polyamide, and has a dramatic adhesive strength ratio of 2.0 or more. The effect of improving adhesion was shown. From this fact, the adhesion improving effect of the olefin resin composition obtained by blending an olefin resin having a melting point of 124 ° C. or lower with a polar group-containing olefin copolymer having a linear structure is Shown not limited.

In Examples 5-1 to 5-12, an olefin resin having a melting point of 124 ° C. or lower is blended with the polar group-containing olefin copolymer. It was shown that a sufficient adhesive improvement effect can be obtained for the olefin resin composition regardless of the MFR of the olefin resin, the monomer type used for polymerization, and the blending ratio.

The significance and rationality of the configuration of the present invention (invention specific matter) and the superiority to the prior art are clarified by the good results of each of the above examples and the comparison with each comparative example.

Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. This application is a Japanese patent application filed on March 27, 2013 (Japanese Patent Application No. 2013-0667402), a Japanese patent application filed on March 27, 2013 (Japanese Patent Application No. 2013-0667409), and a Japanese application filed on June 26, 2013. Patent application (Japanese Patent Application No. 2013-133857), Japanese patent application filed on February 28, 2014 (Japanese Patent Application No. 2014-039324), Japanese patent application filed on February 28, 2014 (Japanese Patent Application No. 2014-039335) The contents of which are incorporated herein by reference.

The polar group-containing olefin copolymer (A) of the present invention, a multi-component polar olefin copolymer (B), and an olefin resin composition (D) containing a polar group-containing olefin copolymer and an olefin resin. ), Olefin-based resin composition (D ′), and olefin-based resin composition (D ″) exhibit high adhesiveness to other base materials, making it possible to produce industrially useful laminates. The resin composition that can be produced according to the present invention is excellent not only in adhesiveness but also in mechanical and thermal properties, and can be applied as a useful multilayer molded article, and is laminated on various substrates. Widely used in packaging materials, packaging containers, industrial materials such as fibers, pipes, fuel tanks, hollow containers and drums, civil engineering such as water-stopping materials, electronics such as electronics and household appliances, and wires such as electric wires and cables Used in .

Claims

The amount of structural units derived from at least one of ethylene and an α-olefin having 3 to 20 carbon atoms is 99.999 to 80 mol% and includes an epoxy group represented by the following structural formula (I) or the following structural formula (II) A polar group-containing olefin copolymer containing 20 to 0.001 mol% of a structural unit amount derived from at least one polar group-containing monomer, which is obtained by copolymerization in the presence of a transition metal catalyst, A polar group-containing olefin copolymer having a linear molecular structure and random copolymerization.

(In the structural formula (I), R 1 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, and R 2 , R 3 , and R 4 each independently contains a hydrogen atom, a hydrocarbon group, or an epoxy group) And any one of R 2 to R 4 is the following specific functional group including an epoxy group.
Specific functional group: a group that contains an epoxy group as essential and has a molecular structure consisting of carbon, oxygen, and hydrogen)

(In Structural Formula (II), R 5 to R 8 each independently represents a specific functional group shown below including a hydrogen atom, a hydrocarbon group, or an epoxy group, and any one of R 5 to R 8 Is a specific functional group including an epoxy group, and m is 0-2.
Specific functional group: a group that contains an epoxy group as essential and has a molecular structure consisting of carbon, oxygen, and hydrogen)
2. The polar group-containing olefin copolymer according to claim 1, wherein the melting point is 50 ° C. to 140 ° C. represented by the temperature at the maximum peak position of the absorption curve measured by the differential scanning calorimetry (DSC) method. Coalescence.
3. The polar group-containing olefin copolymer according to claim 1, wherein the amount of aluminum (Al) contained in the polar group-containing olefin copolymer is 0 to 100,000 μg per 1 g of the copolymer.
The polar group-containing component according to any one of claims 1 to 3, wherein the weight average molecular weight (Mw) determined by gel permeation chromatography (GPC) is 1,000 to 2,000,000. Olefin copolymer.
5. The polar group-containing product according to claim 1, wherein the weight average molecular weight (Mw) determined by gel permeation chromatography (GPC) is 33,000 to 2,000,000. Olefin copolymer.
The polar group-containing olefin copolymer according to any one of claims 1 to 5, wherein the transition metal catalyst is a transition metal containing a chelating ligand and a Group 5 to 11 metal.
The polar group-containing olefin copolymer according to any one of claims 1 to 6, wherein the polar group-containing olefin copolymer is a transition metal catalyst in which a triarylphosphine or a triarylarsine compound is coordinated to palladium or nickel metal. Olefin copolymer.
One or more nonpolar monomer (X1) units selected from ethylene and an α-olefin having 3 to 10 carbon atoms and one or more polar monomer (Z1) units selected from monomers having an epoxy group; A multi-component polar group-containing olefin copolymer characterized by comprising any acyclic or cyclic monomer (Z2) unit (provided that at least one unit of each of X1, Z1, and Z2 is essential). A multi-component polar group-containing olefin copolymer having a linear molecular structure and a random copolymer obtained by copolymerization in the presence of a transition metal catalyst.
The multi-component polar group according to claim 8, wherein the ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn) determined by gel permeation chromatography (GPC) is in the range of 1.5 to 3.5. Containing olefin copolymer.
The melting point Tm (° C.) expressed by the temperature at the maximum peak position of the absorption curve measured by the differential scanning calorimetry (DSC) method is 50 <Tm <128-6.0 [Z1] (where Z1 The multi-component polar group-containing olefin copolymer according to claim 8 or 9, wherein the monomer unit derived from is defined as [Z1] (mol%).
The multi-component polar group-containing olefin copolymer according to any one of claims 8 to 10, wherein a polar monomer (Z1) unit selected from monomers having an epoxy group is 0.001 to 20.000 mol%. .
The multi-component polar group-containing olefin copolymer according to any one of claims 8 to 11, wherein the nonpolar monomer (X1) unit is ethylene.
The multi-component polar group-containing olefin copolymer according to any one of claims 8 to 12, wherein the transition metal catalyst is a transition metal containing a chelating ligand and a Group 5-11 metal. .
The multicomponent system according to any one of claims 8 to 13, wherein the multi-component polar group-containing olefin copolymer is a transition metal catalyst in which a triarylphosphine or a triarylarsine compound is coordinated to palladium or nickel metal. Polar group-containing olefin copolymer.
The molecular structure is linear and is obtained by copolymerizing at least one of ethylene and an α-olefin having 3 to 20 carbon atoms and a polar group-containing monomer containing an epoxy group in the presence of a transition metal catalyst. An olefin-based resin composition comprising a polar group-containing olefin copolymer (A ′) that is a random copolymer and an olefin-based resin (C), wherein the blending amount of the olefin-based resin (C) is a polar group-containing olefin An olefin-based resin composition that is 1 to 99,900 parts by weight per 100 parts by weight of the copolymer (A ′).
The olefin resin composition according to claim 15, wherein the polar group-containing monomer containing an epoxy group is a polar group-containing monomer containing an epoxy group represented by the following structural formula (I) or the following structural formula (II).

(In the structural formula (I), R 1 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, and R 2 , R 3 , and R 4 each independently contains a hydrogen atom, a hydrocarbon group, or an epoxy group) And any one of R 2 to R 4 is the following specific functional group including an epoxy group.
Specific functional group: a group that contains an epoxy group as essential and has a molecular structure consisting of carbon, oxygen, and hydrogen)

(In Structural Formula (II), R 5 to R 8 each independently represents a specific functional group shown below including a hydrogen atom, a hydrocarbon group, or an epoxy group, and any one of R 5 to R 8 Is a specific functional group including an epoxy group, and m is 0-2.
Specific functional group: a group that contains an epoxy group as essential and has a molecular structure consisting of carbon, oxygen, and hydrogen)
In the polar group-containing olefin copolymer (A ′), the amount of structural units derived from at least one of ethylene and an α-olefin having 3 to 20 carbon atoms is 99.999 to 80 mol%, and a polar group-containing monomer containing an epoxy group The olefin resin composition according to claim 15 or 16, wherein the amount of structural units derived from is 20 to 0.001 mol%.
16. The olefin resin (C) is at least one of a homopolymer and a copolymer obtained by polymerizing a monomer selected from at least one of ethylene and an α-olefin having 3 to 20 carbon atoms. The olefin resin composition according to any one of claims 17 to 17.
The olefin resin according to any one of claims 15 to 18, wherein the olefin resin (C) is an ethylene homopolymer or a copolymer of ethylene and an α-olefin having 3 to 20 carbon atoms. Resin composition.
Of the absorption curve measured by differential scanning calorimetry (DSC) of the polar group-containing olefin copolymer (A ′), the melting point represented by the temperature at the maximum peak position is in the range of 50 to 140 ° C. The olefin-based resin composition according to any one of claims 15 to 19, wherein
The polar group-containing olefin copolymer (A ') is a copolymer polymerized in the presence of a transition metal catalyst of a Group 5-11 metal having a chelating ligand. 21. The olefin resin composition according to any one of 20 above.
The polar group-containing olefin copolymer (A ′) is a copolymer polymerized in the presence of a transition metal catalyst in which a triarylphosphine or a triarylarsine compound is coordinated to palladium or nickel metal. The olefin resin composition according to any one of claims 21 to 22.
The olefin according to any one of claims 15 to 22, wherein the density of the olefin resin (C) measured in accordance with JIS K7112 is in the range of 0.890 to 1.20 g / cm 3. -Based resin composition.
The melting point of the olefin resin (C) expressed by the temperature at the maximum peak position of the absorption curve measured by differential scanning calorimetry (DSC) is in the range of 90 to 170 ° C. Item 24. The olefin resin composition according to Item 23.
The melting point represented by the temperature of the maximum peak position of the absorption curve measured by differential scanning calorimetry (DSC) is in the range of 119 to 170 ° C. Olefin-based resin composition.
The olefin resin composition according to any one of claims 15 to 25, wherein the heat of fusion ΔH measured by differential scanning calorimetry (DSC) is in the range of 80 to 300 J / g.
The melting point represented by the temperature of the maximum peak position of the absorption curve measured by differential scanning calorimetry (DSC) of the olefin resin (C) is 30 to 124 ° C. The olefin resin composition according to item 1.
The polar group-containing olefin copolymer according to any one of claims 1 to 7, the multi-component polar group-containing olefin copolymer according to any one of claims 8 to 14, or the claim Item 28. An adhesive containing the olefin resin composition according to any one of Items 15 to 27.
The polar group-containing olefin copolymer according to any one of claims 1 to 7, the multi-component polar group-containing olefin copolymer according to any one of claims 8 to 14, or the claim A laminate comprising at least the olefin resin composition according to any one of Items 15 to 27 and a base material layer.
The said base material layer contains at least 1 sort (s) chosen from an olefin resin, a highly polar thermoplastic resin, a metal, the vapor deposition film of an inorganic oxide, papers, cellophane, a woven fabric, and a nonwoven fabric. Laminated body.
The laminate according to claim 29 or 30, wherein the base material layer includes at least one selected from a polyamide resin, a fluorine resin, a polyester resin, and an ethylene-vinyl alcohol copolymer (EVOH). .